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Title: USB Miners Post by: chynnc on July 08, 2014, 12:12:34 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience.
Thank you all in advance. Title: Re: USB Miners Post by: notlist3d on July 08, 2014, 01:18:55 AM If you look on Ebay you will find lots of block erupters for cheap. It is more of for fun on most usb miners don't expect ROI.
Title: Re: USB Miners Post by: IamCANADIAN013 on July 08, 2014, 04:55:11 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Title: Re: USB Miners Post by: minerjoen on July 08, 2014, 05:03:35 AM Well there is not much to experience with, most of the usb miners (like that usb stick formats etc) are plug and play (just install drivers and done)
I've used like 20 from that usb sticks and 1 bigger one from 5ghs from butterfly labs.. It was a while ago so i made some money out of it, but since some months u get really nothing anymore out of it. (even if u pay nothing for the power it used, u would not get 1 bitcoin with over 8ghs over 1 year, 1 usb stick give u 0.33 ghs.. Ofc its nice to experience with but i think u can beter get some experience with the crypt/x11/x13 coins what u can make with ur CPU / GPU. Ofc if you want bitcoins at the end u can change ur coins for bitcoins. U will get much more out of it if you follow this website and get the right coins to mine. Title: Re: USB Miners Post by: enhu on July 08, 2014, 05:11:18 AM I was also planing to buy USB ASIC miner lately but change my mind when i saw some miners hardware to which If would I wouldn't stand a chance. You try to use the mining calculator to check whether you will be profitable or not. else it will just be a waste of $ to buy USB miners. Title: Re: USB Miners Post by: Peter882 on July 08, 2014, 06:04:45 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. You can buy them on eBay easily, but as you already know, it is pretty much useless for mining now. But if you are going for mine for fun, go for it and have fun. :D Title: Re: USB Miners Post by: chynnc on July 08, 2014, 12:10:36 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. Title: Re: USB Miners Post by: beegatewood on July 08, 2014, 12:42:16 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. If you really want to convince her, you need some real ASIC that can go at least 1 TH/s. If not your profit will be so small that no body cares.. Title: Re: USB Miners Post by: Relnarien on July 08, 2014, 12:50:24 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. Unfortunately, even larger ASICS are decreasing in profitability from Bitcoin mining in today's petahash-based environment. According to coinwarz.com, it would take a 1 terahash miner at least 33 days of continuous mining before it can generate a full Bitcoin. And that's assuming that you're not paying for electricity (which you said you didn't), that pool fees are not deducted from your earnings and that the network difficulty stays constant or decreases. There's also the issue of setting up and maintaining the hardware, which you'll need to take care of if you live in a highly urbanized area. You pretty much won't be getting an RoI for a while. You'll prolly earn about $20 dollars worth of Bitcoins running 5 to 10 USB miners 24-7. If for some reason, you are able to convince your sister to plop some cash down for some stronger hardware by showing her such a paltry amount, you would then need to convince her that she'll be getting back her few hundred dollars with interest in just a few months, barring an unfortunate mishap involving summer heat and an unventilated room. Mine for fun. But even with free electricity, you won't be making much of a profit unless you're planning on mining with a few good terahashes. Title: Re: USB Miners Post by: Dannie on July 08, 2014, 12:51:48 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. If you really want to convince her, you need some real ASIC that can go at least 1 TH/s. If not your profit will be so small that no body cares.. It is more likely to never get your investment back with the ASIC IMO. It probably will reinforce her "idea" that bitcoin is a scam. :( Title: Re: USB Miners Post by: Katarina on July 08, 2014, 12:53:39 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. If you really want to convince her, you need some real ASIC that can go at least 1 TH/s. If not your profit will be so small that no body cares.. It is more likely to never get your investment back with the ASIC IMO. It probably will reinforce her "idea" that bitcoin is a scam. :( Agree, so don't using mining to convince her. Use investing instead :) Title: Re: USB Miners Post by: Dannie on July 08, 2014, 01:03:05 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. If you really want to convince her, you need some real ASIC that can go at least 1 TH/s. If not your profit will be so small that no body cares.. It is more likely to never get your investment back with the ASIC IMO. It probably will reinforce her "idea" that bitcoin is a scam. :( Agree, so don't using mining to convince her. Use investing instead :) Or you can show her the superiority of bitcoin, by showing her you can receive or send a payment to someone on the other side of the globe instantly, easily, with a very low fee. :) Title: Re: USB Miners Post by: zee11224 on July 08, 2014, 01:53:36 PM If you look on Ebay you will find lots of block erupters for cheap. It is more of for fun on most usb miners don't expect ROI. Hmm sir can we mine altcoins with ERUPTERS i serached on google but they say that you cannot mine altcoins only bitcoin .. so is there any way that i can mine altcoins can we hack it :D ? Title: Re: USB Miners Post by: ranochigo on July 08, 2014, 01:55:46 PM If you look on Ebay you will find lots of block erupters for cheap. It is more of for fun on most usb miners don't expect ROI. Hmm sir can we mine altcoins with ERUPTERS i serached on google but they say that you cannot mine altcoins only bitcoin .. so is there any way that i can mine altcoins can we hack it :D ? Title: Re: USB Miners Post by: notlist3d on July 08, 2014, 02:00:15 PM If you look on Ebay you will find lots of block erupters for cheap. It is more of for fun on most usb miners don't expect ROI. Hmm sir can we mine altcoins with ERUPTERS i serached on google but they say that you cannot mine altcoins only bitcoin .. so is there any way that i can mine altcoins can we hack it :D ? Title: Re: USB Miners Post by: chynnc on July 08, 2014, 02:17:44 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. If you really want to convince her, you need some real ASIC that can go at least 1 TH/s. If not your profit will be so small that no body cares.. Well then, if anyone has something nicer than usb that they're willing to give, I'd take that too x3 Title: Re: USB Miners Post by: gondel on July 08, 2014, 02:27:25 PM Sorry for the question, but is it possible to mine some altcoin and new poped coins with these usb miners?
Title: Re: USB Miners Post by: Eric2013 on July 08, 2014, 02:34:22 PM to conclude, all miners are completely waste of money for guys like u.
Title: Re: USB Miners Post by: 300 on July 08, 2014, 02:37:45 PM Sorry for the question, but is it possible to mine some altcoin and new poped coins with these usb miners? Are you asking whether it's possible to mine altcoins with a USB miner? If so, then yes. But only if the altcoin is SHA-256-based. Peercoin and Namecoin are both SHA-256 coins, as well as a few others. So these could be mined with a USB miner. But most altcoins such as Litecoin and Dogecoin are Scrypt-based. So you won't be able to mine these coins with them. Title: Re: USB Miners Post by: ranochigo on July 08, 2014, 02:38:04 PM Sorry for the question, but is it possible to mine some altcoin and new poped coins with these usb miners? Depending on the type of algorithm used for that crypto. You can use Bitcoin Usb miners for Sha256 coins and Litecoin USB miner for scrypt alt coins. You might still not be able to ROI though.Title: Re: USB Miners Post by: 300 on July 08, 2014, 02:39:47 PM Sorry for the question, but is it possible to mine some altcoin and new poped coins with these usb miners? Depending on the type of algorithm used for that crypto. You can use Bitcoin Usb miners for Sha256 coins and Litecoin USB miner for scrypt alt coins. You might still not be able to ROI though.Interesting. I didn't know they had scrypt USB miners. I thought all USB miners were SHA-based. Title: Re: USB Miners Post by: ranochigo on July 08, 2014, 02:55:32 PM Sorry for the question, but is it possible to mine some altcoin and new poped coins with these usb miners? Depending on the type of algorithm used for that crypto. You can use Bitcoin Usb miners for Sha256 coins and Litecoin USB miner for scrypt alt coins. You might still not be able to ROI though.Interesting. I didn't know they had scrypt USB miners. I thought all USB miners were SHA-based. Title: Re: USB Miners Post by: IamCANADIAN013 on July 09, 2014, 12:19:04 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. I'd send you a few if you were closer, cross country and cross border can get expensive for shipping though. Try craigslist or kijiji if you have it in your area. I did a Craigslist search for your area, came up with Hudson Valley. Looks a ways down the road though, but I see antminer u1's and u2's for around $20 bucks. This is the search I did: http://hudsonvalley.craigslist.org/search/sss?sort=priceasc&query=Bitcoin%20miner (http://hudsonvalley.craigslist.org/search/sss?sort=priceasc&query=Bitcoin%20miner) I'm sure there are ones closer than the ones I found, you know the area better than I would. Ebay might be an option as well. I see some going for cheap on there, might even be able to pick up local. Good luck. Title: Re: USB Miners Post by: wannaBaMiner on July 09, 2014, 12:27:16 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. I'd send you a few if you were closer, cross country and cross border can get expensive for shipping though. Try craigslist or kijiji if you have it in your area. I did a Craigslist search for your area, came up with Hudson Valley. Looks a ways down the road though, but I see antminer u1's and u2's for around $20 bucks. This is the search I did: http://hudsonvalley.craigslist.org/search/sss?sort=priceasc&query=Bitcoin%20miner (http://hudsonvalley.craigslist.org/search/sss?sort=priceasc&query=Bitcoin%20miner) I'm sure there are ones closer than the ones I found, you know the area better than I would. Ebay might be an option as well. I see some going for cheap on there, might even be able to pick up local. Good luck. Watch the shipping costs. I got burned awhile a go and ended up paying double what the unit cost just for the shipping. Title: Re: USB Miners Post by: zhinkk on July 09, 2014, 12:45:13 AM I think it's interesting that you want to spend money just to experience mining. I think it's kind of good. But why buy a USB miner. If you don't want to "earn" anything and just "experience" mining, why not just GPU/CPU mine? It would do the same thing, giving you first hand experience of mining and not earning any money.
Title: Re: USB Miners Post by: IamCANADIAN013 on July 09, 2014, 12:47:02 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. I'd send you a few if you were closer, cross country and cross border can get expensive for shipping though. Try craigslist or kijiji if you have it in your area. I did a Craigslist search for your area, came up with Hudson Valley. Looks a ways down the road though, but I see antminer u1's and u2's for around $20 bucks. This is the search I did: http://hudsonvalley.craigslist.org/search/sss?sort=priceasc&query=Bitcoin%20miner (http://hudsonvalley.craigslist.org/search/sss?sort=priceasc&query=Bitcoin%20miner) I'm sure there are ones closer than the ones I found, you know the area better than I would. Ebay might be an option as well. I see some going for cheap on there, might even be able to pick up local. Good luck. Watch the shipping costs. I got burned awhile a go and ended up paying double what the unit cost just for the shipping. Good advice, I got burned on shipping costs on Ebay a few years back. That's why I mentioned the part about picking up local. I contacted a seller near where I am for an antminer S1. I was able to pick it up only a 30 minute drive away, he even dropped the price a few bucks since he didn't have to go through the the shipping steps and he also didn't have to pay ebay fee's I think it's interesting that you want to spend money just to experience mining. I think it's kind of good. But why buy a USB miner. If you don't want to "earn" anything and just "experience" mining, why not just GPU/CPU mine? It would do the same thing, giving you first hand experience of mining and not earning any money. That's what I did to get started, I saw results, although very small. Went out and bought the USB miners. Title: Re: USB Miners Post by: bitcoincal on July 09, 2014, 12:52:51 AM When people say the USB miners are not profitable is that under the estimation that 1BTC will always be around 500 USD?
What if 1BTC = 10,000 or 50,000 a few years from now? Title: Re: USB Miners Post by: IamCANADIAN013 on July 09, 2014, 01:37:12 AM When people say the USB miners are not profitable is that under the estimation that 1BTC will always be around 500 USD? What if 1BTC = 10,000 or 50,000 a few years from now? Problem with most of the miners is that they cost more in electricity than you get in return. then there is the cost of the miner. Better off just taking the money you'll invest on USB miners and using it to buy bitcoin. Whats a better return? Buying a usb stick for $20 bucks or $20 dollars worth of bitcoin? Title: Re: USB Miners Post by: techlover on July 09, 2014, 06:17:26 AM You can try your luck by mining BTC by solo, if you get one block, would be great
Title: Re: USB Miners Post by: 300 on July 09, 2014, 07:32:29 AM You can try your luck by mining BTC by solo, if you get one block, would be great That would be great. A block is 25 BTC plus transaction fees. That's about $15,000 worth of BTC. A USB miner costs what? $20? If you manage to turn 20 dollars into 15,000 dollars then you'd be the luckiest person in the world. Unfortunately however, you're chances of solving a block with a USB miner would also be correspondingly miniscule. In fact, even if you run it 24/7, it isn't likely to happen for many, many years. :( Still, it might be worth a shot since the alternative would be joining a pool and getting only a couple of satoshis per day. You might even run into the negative profit-wise considering electricity costs. If you do decide to solo mine with a USB miner, then think of it as a lottery and by running the miner, you are buying lottery tickets. Title: Re: USB Miners Post by: gondel on July 09, 2014, 07:48:40 AM You can try your luck by mining BTC by solo, if you get one block, would be great This is already history mate :DYou cannot mine solo for BTC never ever again. BR Gondel Title: Re: USB Miners Post by: Dannie on July 09, 2014, 10:09:43 AM When people say the USB miners are not profitable is that under the estimation that 1BTC will always be around 500 USD? What if 1BTC = 10,000 or 50,000 a few years from now? If you expect bitcoin price to go 100 times higher and you want to maximize your profit, you shouldn't buy a miner but buy bitcoin directly now as it would give you more bitcoin. :) Title: Re: USB Miners Post by: shogdite on July 09, 2014, 10:15:58 AM Mining btc with USB's is great for a hobby but it makes no financial sense when you can earn more just posting on here with a sig campaign.
Could be more profitable to mine an alt currency, just try and avoid the plethora of shitcoins. Title: Re: USB Miners Post by: ranochigo on July 09, 2014, 11:06:30 AM You can try your luck by mining BTC by solo, if you get one block, would be great The time taken to generate a block by solo mining using a block eurpter can be a few hundred years. By the time, your money cannot cover the time, effort and money used to generate it.Title: Re: USB Miners Post by: chynnc on July 09, 2014, 01:38:58 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. I have 10 of them kicking around. Personally, I still can't believe that they are still selling, and/or that people are still buying them. I get that you want the experience, but even with all 10 hooked up, I doubt you'd see much of anything out of them. Where are you located roughly? Well I have nothing to lose but time honestly. I don't pay for electric, so I don't have to worry about that. Also I'm a bit of a show off, my sister thinks all of this is a huge scam. She doesn't get that putting your computer to work can generate something that equates to money. If I can get her on board the cryptocurrency train I'd feel pretty accomplished and maybe convince her to throw down some money with me to get a real miner. I'm in NY a little outside of Poughkeepsie. I'd send you a few if you were closer, cross country and cross border can get expensive for shipping though. Try craigslist or kijiji if you have it in your area. I did a Craigslist search for your area, came up with Hudson Valley. Looks a ways down the road though, but I see antminer u1's and u2's for around $20 bucks. This is the search I did: http://hudsonvalley.craigslist.org/search/sss?sort=priceasc&query=Bitcoin%20miner (http://hudsonvalley.craigslist.org/search/sss?sort=priceasc&query=Bitcoin%20miner) I'm sure there are ones closer than the ones I found, you know the area better than I would. Ebay might be an option as well. I see some going for cheap on there, might even be able to pick up local. Good luck. I never even thought to look on craigslist!! Thanks much. Title: Re: USB Miners Post by: TheJohn on July 09, 2014, 01:46:30 PM You can try your luck by mining BTC by solo, if you get one block, would be great Please don't do that, its as good as gambling. Title: Re: USB Miners Post by: Benjig on July 09, 2014, 06:03:21 PM When people say the USB miners are not profitable is that under the estimation that 1BTC will always be around 500 USD? What if 1BTC = 10,000 or 50,000 a few years from now? If you expect bitcoin price to go 100 times higher and you want to maximize your profit, you shouldn't buy a miner but buy bitcoin directly now as it would give you more bitcoin. :) Exactly, buying usb miners is stupid in any way you wanna see it, making back the roi is hard at this days. Title: Re: USB Miners Post by: TheJohn on July 10, 2014, 01:08:35 AM When people say the USB miners are not profitable is that under the estimation that 1BTC will always be around 500 USD? What if 1BTC = 10,000 or 50,000 a few years from now? If you expect bitcoin price to go 100 times higher and you want to maximize your profit, you shouldn't buy a miner but buy bitcoin directly now as it would give you more bitcoin. :) Exactly, buying usb miners is stupid in any way you wanna see it, making back the roi is hard at this days. Agree, you will get much more bitcoin selling the USB miners and buying BTC directly. Title: Re: USB Miners Post by: notlist3d on July 10, 2014, 04:18:28 AM You can try your luck by mining BTC by solo, if you get one block, would be great Please don't do that, its as good as gambling. You could do this but it would be like going out buying a lottery ticket. Title: Re: USB Miners Post by: IamCANADIAN013 on July 10, 2014, 04:45:48 AM When people say the USB miners are not profitable is that under the estimation that 1BTC will always be around 500 USD? What if 1BTC = 10,000 or 50,000 a few years from now? If you expect bitcoin price to go 100 times higher and you want to maximize your profit, you shouldn't buy a miner but buy bitcoin directly now as it would give you more bitcoin. :) Exactly, buying usb miners is stupid in any way you wanna see it, making back the roi is hard at this days. Not everything in life is based on a roi, some people just want to be able try it out and to know that they are able to do it. Most hobbies generally don't make a person money. If a person can find a couple for a few bucks, whats the harm? Most people waste more than that daily on stupid crap. Title: Re: USB Miners Post by: Dannie on July 10, 2014, 06:28:09 AM When people say the USB miners are not profitable is that under the estimation that 1BTC will always be around 500 USD? What if 1BTC = 10,000 or 50,000 a few years from now? If you expect bitcoin price to go 100 times higher and you want to maximize your profit, you shouldn't buy a miner but buy bitcoin directly now as it would give you more bitcoin. :) Exactly, buying usb miners is stupid in any way you wanna see it, making back the roi is hard at this days. Not everything in life is based on a roi, some people just want to be able try it out and to know that they are able to do it. Most hobbies generally don't make a person money. If a person can find a couple for a few bucks, whats the harm? Most people waste more than that daily on stupid crap. True, and so I used "and you want to maximize your profit" in my post. If you are mining for fun, who cares about ROI :D Title: Re: USB Miners Post by: TheDragonSlayer on July 10, 2014, 10:11:27 AM When people say the USB miners are not profitable is that under the estimation that 1BTC will always be around 500 USD? What if 1BTC = 10,000 or 50,000 a few years from now? If you expect bitcoin price to go 100 times higher and you want to maximize your profit, you shouldn't buy a miner but buy bitcoin directly now as it would give you more bitcoin. :) Exactly, buying usb miners is stupid in any way you wanna see it, making back the roi is hard at this days. Not everything in life is based on a roi, some people just want to be able try it out and to know that they are able to do it. Most hobbies generally don't make a person money. If a person can find a couple for a few bucks, whats the harm? Most people waste more than that daily on stupid crap. True, and so I used "and you want to maximize your profit" in my post. If you are mining for fun, who cares about ROI :D Is ok to buy 1 just for fun, but please don't buy any more as it is a waste of money. Title: Re: USB Miners Post by: rezachkata on July 10, 2014, 02:54:41 PM Hey peeps,
there was this test by a few journalists from a magazine in Germany, who managed to buy a few different ASIC miners including a usb miner. So they tried the miners for a month or so and summarized their earnings. The funny thing is that only the usb miners gave ROI, even a bit of profit. Bear in mind that the article is from late 2013 and the btc difficulty has increased exponentially since then, which means that there is pretty much no chance of ROI, not to speak about any profit what so ever. If somebody is interested I could tell you the article and the magazine, just answer to this thread. Title: Re: USB Miners Post by: Triffin on July 10, 2014, 03:26:36 PM Do these USB miners generate a 'bothersome' amount of noise and heat ??
Would you want them located next to you on your desk all day or in another room ?? Triff .. Title: Re: USB Miners Post by: rezachkata on July 10, 2014, 06:43:21 PM Mitgeschürft
Spezialhardware fürs Bitcoin-Mining Einmal investieren, fortan Geld im Schlaf verdienen: Das BitcoinPrinzip klingt zu schön, um wahr zu sein. Wii· haben einige der Goldgräber-Maschinen im c't-Labor schürfen lassen und gezählt, wie viele Nuggets nach einem Monat im Sieb gelandet sind. Mal eben ein paar Bitcoins berechnen - viel mehr hatten wir uns nicht vorgenommen. Der Büro-PC sollte nach Feierabend Krypto-Rätsel lösen, um virtuelles Geld in die ebenso virtuelle Kasse zu spülen. Kann ja so schwer nicht sein. Eine Fehleinschätzung, wie. sich schnell herausstellte. Denn ein Jahr zuvor haben potente Spezialchips das sogenannte Mining revolutioniert. Sie sind CPUs und Grafikkarten (GPUs) sowohl in puncto Effizienz als auch Performance haushoch überlegen. Da der Schürf- aufwand von der weltweit im Bitcoin-Netz verfügbaren Rechenleistung abhängt, kann man ohne Spezial-Hardware inzwischen kaum noch einen Blumentopf gewinnen; ge- . schweige denn Bitcoins. Um doch noch an selbstgeschürfte Krypta- Nuggets zu kommen, haben wir MiningHardware von klein bis mittelgroß zusammengetragen und den ganzen Oktober für uns ackern lassen. Das kleinste und günstigste Gerät im Testfeld kostet gerade einmal 14 Euro: Der Block Erupter im USB-Stick-Format frisst nur rund zwei Watt . und schafft etwa 330 Millionen Hash-Operationen Megahashes pro Sekunde (MHash/s) - mehr als die meisten Grafikkarten. Sein Geheimnis ist ein ASIC (Application Specific lntegrated Circu jt). Solche Spezialchips können nur eines, das aber in atemberaubender Geschwindigkeit; in diesem Fall SHA-256-Hashes berechnen. Mehr als die 16-fache Rechenleistung (5,5 GigaHashes/Sekunde oder auch GHash/s) bietet der würfelförmige Bitcoin-Miner Jalapeno von Butterfly Labs, verheizt aber auch 30 Watt. Für Neugeräte verlangt der Hersteller bei Direktbestellung in den USA rund 300 US-Dollar. Zudem werden Zoll und Einführumsatzsteuer fällig. Die Lieferzeiten sind allerdings extrem lang: Anfang November war Butterfly Labs noch mit den April-Bestellungen beschäftigt. Wir haben das Testgerät daher bei eBay geschossen, wo der Kurs für Gebrauchtware bei Redaktionsschluss etwa 250 Euro betrug. Darüber hinaus schickten wir zum Vergleich noch einen mit zwei modernen Grafikkarten bestückten Windows-PC ins Rennen. Die Duai-GPU-Karte Radeon HD7990 und die HD7970 (Single-GPU) bringen es gemeinsam immerhin auf 1,7 GigaHashes pro Sekunde (GHash/s)- allerdings zu einem hohen Preis. Allein die Grafikkarten schlagen zusammen mit rund 1000 Euro zu Buche und der Stromverbrauch ist gegenüber den ASICs um ein Vielfaches höher: Der Testaufbau schluckt inklusive PC fast 800 Watt. Nachdem sich die Testsysteme schon zwei Wochen in unserem Labor warmgelaufen hatten, erreichte uns ein noch größeres ASICGerät von Butterfly Labs. Es schürft mit 30 GHash/s und ist damit mit Abstand das schnellste System im Testfeld. Es wird mit etwa 800 Euro gehandelt. Bitcoin-Lotto mit System Beim Bitcoin-Mining spielt der Zufall eine große Rolle. Der Erste, der nachvollziehbar einen Hash mit bestimmten Eigenschaften findet, bekommt derzeit 25 Bitcoins - also rund 4100 Euro..:.. zugesprochen. Die von den Minern beigesteuerte Rechenleistung treibt das Zahlungssystem Bitcoin an, die abfallenden Krypta-Nuggets sind ihr Lohn. Wie beim Lotto ist die Chance auf den Jackpot für den einzelnen Teilnehmer ziemlich gering. Einigermaßen regelmäßige Gewinne erzielt man nur im Team, in sogenannten Mining Pools. Der Pool teilt die HashingAufgaben unter den Teilnehmern auf und dementsprechend im Erfolgsfall auch die Bitcoins. Je mehr Hash-Operationen man anteilig beigesteuert hat, desto mehr fällt vom Gewinn ab. ln der Regel kassiert auch der PoolBetreiber einen Anteil. Wir haben unsere vier Mining-Systeme in verschiedene Pools getaucht, die unterschiedliche Auszahlungsmodelle anbieten (siehe Kasten auf Seite 144). Eine Übersicht der Pools und der jeweiligen Konditionen finden Sie unter dem c't-Link. Auf die Plätze ... Mining-Tools wie cgminer und BFGMiner holen die Arbeitsaufträge vom Pool ab und füttern die Mining-Hardware. Beide stehen unter Open-Source-Lizenz und laufen unter Linux, Windows und Mac OS X. Viel Rechenleistung erfordern sie nicht; um die MiningGeräte per USB mit Arbeit zu versorgen, genügt der 40 Euro teure Einplatinenrechner Raspberry Pi. Dieser produziert kaum Abwär- . me und schluckt nur knapp 2 Watt. Für einen schnellen Start mit dem Raspberry greift man am besten zur vorkonfigurierten Linux-Distribution MinePeon (siehe c't-Link), die auf eine SD-Karte mit 2 GByte passt. Lediglich die Zugangsdaten für den Mining-Pool muss man selbst eintragen. MinePeon spannt automatisch alle verfügbaren USB-Miner in das Bitcoin-Schürfen ein und lässt sich komfortabel über ein WebInterface administrieren. Standardmäßig zwackt die Distribution etwas Rechenleistung als Spende für den Entwickler ab. Wer das Projekt nicht auf diese Weise unterstützen möchte, kann dies in den Einstellungen auch abschalten - wird. dann aber von MinePeon als "Kitten killer'' begrüßt. Der USB-Stick Block Erupter mit 330 MHash/s verbraucht im Gespann mit dem Raspberry 4,8 Watt, liefert also rund 70 MegaHashes pro Watt. Der Stick erhielt seine Aufträge von BTC Guild, dem derzeit leistungsstärksten Mining-Pool im Bitcoin-Netz. Tatsächlich stieg das Guthaben nach dem Startschuss kontinuierlich an und es wurde bald zum alltäglichen Ritual, den Kontostand zu überprüfen. Allerdings zeichnete sich schnell ab, dass mit dem dort erschürften BitcoinKieingeld in absehbarer Zeit keine großen Sprünge möglich werden. Nach über einem Monat waren gerade einmal 0,02309273 Bitcoin (BTC) zusammengekommen. Anfang November 2013 entsprash das umgerechnet rund 3,80 Euro - bei Stromkosten in Höhe von einem Euro. Höher, schneller, reicher Effizienter schürft ·es sich mit mehr Rechenleistung. So ergibt ein Zehnfach-USB-Hub mit neun Mining-Sticks schon ein kleines Rig. An den zehnten Port würde man einen USB-Ventilator stecken, der für etwas Durchzug sorgt; unser Einzelstick erreichte im Dauerbetrieb über 90 oc. Das Mining-Rig wäre ungefähr doppelt so effizient wie der Einzelbetrieb (ca. 130 MHash/Watt), weil der Strom für den ansteuernden Rechner nur einmal anfiele. Der schwarze Mining-Würfel Jalapeno von Butterfly Labs holt noch mehr heraus: rund Bitcoin-Mining-Hardware Prüfstand I Bitcoin-Mining Mining-Hardware von klein bis groß: der Block Erupter von ASCIMiner sowie der Jalapeno und der Little Single 30 vo,n Butterfly Labs 170 MHash pro Watt. Wir haben ihn an Slush's Pool angeschlossen, dessen Betreiber das Konzept des gemeinschaftlichen Schürfens vor drei Jahren erfunden hat. Zunächst machte sich Skepsis breit: Während wir bei BTC Guild laufend mit Kleinstbeträgen belohnt wurden, tat sich bei Slush lange Zeit nichts. Der Grund hierfür ist, dass Slush das Auszahlungsmodell "Pay Per Share (PPS)" nutzt und erst ausschüttet, nachdem tatsächlich ein neuer B'lock gefunden wurde. Einige Stunden und nur wenige Auszahlungen später legten sich unsere Zweifel allerdingsschließlich zählt einzig und allein, was am Ende herauskommt. Nach vier Wochen waren das immerhin rund 0,34 BTC; etwa 56 Euro. Ungefähr 6,40 Euro gingen allerdings an den Stromversarger des Heise-Ver-· lags. Unser GPU-System hat im BitMinter-Pool knapp 0,10 BTC eingefahren. Umgerechnet sind das etwas über 16 Euro vor Abzug der Stromkosten - diese haben es allerdings in sich: Das System frisst bei 1,7 GHash/s stolze 800 Watt, was während des vierwöchigen Messzeitraums zu Stromkosten in Höhe von 160 Euro geführt hat. Die Effizienz beträgt gerade einmal zwei MHash/s pro Watt. Aber wir hatten ja mit dem "Little Single" noch ein Ass im Ärmel, der im Testfeld das andere Ende der Effizienzskala darstellen sollte. Der große Bruder des Butterfly-Würfels ist so groß wie eine Packung Toastbrot und schafft stolze 30 GigaHashes pro Sekunde. Das Gerät gesellte sich zwar erst zur Monatsmitte zu den anderen Minern ins Testlabor, konnte diese aber noch mühelos einholen. Der Little Single hat in zwei Wochen 0,52 BTC verdient, was über 85 Euro entspricht. ln der Zeit sind uns etwa 12 Euro Stromkosten entstanden. Aus einem Watt holt der Little Single 230 MHash/s raus. Das Mining-Toastbrot stand im Dienst des Eliguis-Pools, der als einziger der getesteten Pools keine Registrierung verlangt. Als Nutzername dient die Bitcoin- Adresse, an welche die geschürften Bitcoins überwiesen werden sollen. Das Passwort bleibt leer. Riskante Rechenspiele Ermittelt man den Tagelohn und teilt dadurch den Anschaffungspreis der Hardware, ergibt das den Break-even-Point; also den Zeitpunkt, an man die aufgebrachten Kosten wieder reingeholt hat und Gewinne einfährt. Bei unseren drei ASIC-Systemen ist das jeweils nach rund 150 Tagen so weit. Diese Rechnung setzt allerdings voraus, dass die Konditionen die gleichen sind, die im Oktober 2013 herrschten- und das ist extrem unwahrscheinlich. Eine zentrale Unbekannte ist der Schwierigkeitsgrad (Difficulty), der sich an der global verfügbaren Rechenleistung orientiert. Je mehr Leistung dem Bitcoin-Netz zur Verfügung steht, desto größer ist der Rechenaufwand, um einen Bitcoin-Biock zu knacken (siehe Seite 146). Die Difficulty hat sich im Jahr 2013 durch die Verfügbarkeit immer leistungsfähigerer FPGA- und kurz darauf ASIC-Hardware mehr als verhundertfacht Der Schwierigkeitsgrad ist exponentiell gestiegen - und Prognosen zufolge geht das auch so weiter. Wer einen Blick in die Glaskugel werfen möchte, kann mit den Eckdaten der Miner auf der Webseite BitReturn.com eiQige Varianten durchspielen. Setzt sich das exponentielle Wachstum fort, erreichen die von uns getesteten Geräte schon bald den Zeitpunkt, ab dem sie mehr Strom verbrauchen, als sie an Bitcoins einfahren. Dieser Zeitpunkt liegt voraussichtlich vor dem Break-even-Point. Kurzum: Keiner unserer Miner hätte noch die Chance, seine Anschaffungskosten wieder einzuspielen. Will man einen Gewinn einfahren, muss man die Spezialhardware rechtzeitig weiter- verkaufen- und darauf spekulieren, dass der zwischenzeitlich erschürfte Betrag die Differenz zwischen Kaufpreis und Wiederverkaufspreis (abzüglich Stromkosten) übertrifft. Ein weiterer Risikofaktor ist der Bitcoin-Kurs. Wie er sich entwickelt, ist nicht vorhersehbar. Währet1d unseres Testmonats schnellte er von unter 100 Euro pro Bitcoin auf über 160 hoch - so viel waren die digitalen Münzen seit langem nicht mehr wert. Wenn Sie dieses Heft in den Händen halten, hat sich der Kurs vielleicht verdreifacht oder ist in den Keller gefallen und kommt dort so schnell nicht mehr raus. Raue Sitten Ebenfalls schwer kalkulierbar ist die Stabilität der beteiligten Systeme. Der GAU wäre ein Hardware-Defekt. Denn selbst wenn der Hersteller die Kosten für die Reparatur übernimmt, bedeutet der Versand ins Ausland einen Verdienstausfall auf unbestimmte Zeit. So stand der Besitzer des von ·uns getesteten Little Single kurz davor, es zum Hersteller Butterfly Labs in die USA zu schicken, da es vermeintlich defekt war. Im c't-Labor konnten wir das Gerät allerdings mit einem anderen Netzteil wieder zum Leben erwecken. Auch die Pools haben mit Ausfällen zu kämpfen. Diese werden vor allem durch Cyber-Angriffe verursacht. BTC Guild plagte während des Tests etwa ein DDoS-Angriff, der zu einem mehrstündigen Verdienstausfall führte. Im Frühjahr gelang es Hackern sogar, auf die Kundendatenbank von Slush's Pool zuzugreifen. Unser GPU-System wurde von zwei Pools nacheinander nach kurzer Zeit nicht mehr mit Krypta-Aufgaben versorgt, woraufhin wir jeweils den Pool wechselten. Dadurch kam die virtuelle Goldader zwischenzeitlich zum Erliegen. Die Ursachen für den Ausschluss konnten wir nicht ergründen .. Zahltag Um den Lohn für unsere Mühen in Empfang zu nehmen, installierten wir den offiziellen Bitcoin-Ciient (siehe c't-Link). Dieser generiert auf Wunsch beliebig viele Bitcoin-Adressen, mit denen man Zahlungen empfangen kann. Damit sich die Auszahlung im Client materialisiert, muss der Client zunächst einmalig die globale Transaktionsliste, die sogenannte Blockchain, aus dem Bitcoin-Netz laden. Das dauert mehrere Stunden. Der Client kontrolliert die Entwicklung der Blockehain fortan und reagiert, wenn er Transaktionen entdeckt, die zu den lokal generierten Adressen passen. Als wir die Auszahlung bei den vier von uns genutzten Pools veranlassten, dauerte es nicht lange, bis der Client den Geldeingang bekannt gab. Ein zufriedenes Gefühl wollte sich nach Abschluss aller Transaktionen dennoch nicht einstellen. Ignoriert man einmal die Stromkosten, die Hardware-Ausgaben und nimmt großzügig die Bitcoin-Bröckchen hinzu, die vor und nach der offiziellen Testphase eingetrudelt sind, haben wir 1,46004791 BTC verdient - nach dem letzten Stand entspricht das rund 250 Euro. Hart verdientes Geld. Wer sich ' jetzt noch der Gemeinde der Bitcoin-Schürfer anschließen will, der sollte genau wissen, was er tut. Geld verdient man nur, indem man frühzeitig auf potente Hardware setzt und diese rechtzeitig an zahlungswillige Glücksritter weiterverkauft. Die nächste Runde im Wettrüsten ist längst e.ingeläutet: So verspricht etwa der USB-Stick Blue Fury bis zu 2,7 GHash/s für 150 US-Dollar und auch Butterfly Labs macht den Schürfern schon wieder den Mund wässrig. Die "600 GH Bitcoin Mining Card" für 4680 USDollar wird bereits angeboten -zur Vorbestellung. Die Chips der neuen Miner sollen mit 28 Nanometern. Strukturbreite gefertigt werden und deutlich effizienter sein. Zum Reinschnuppern in die Weit des digitalen Gelds eignet sich auch eine Handvoll gekaufter Krypta-Münzen ganz hervorragend. Allein die Kursschwankungen sorgen bereits für eine gesunde Dosis Nervenkitzel - ganz ohne Hardware-Investitionen. Und wer doch mal einige Eurocent errechnen will, kann beherzt zu dem Block Erupter im USB-Stick-Format greifen. Die investierten 14 Euro sieht man zwar nicht wieder, dafür kann man jedoch behaupten, in den eigenen vier Wänden echtes Geld hergestellt zu haben. -------------------------------------------------- Auszahlungsmodelle Beim gemeinschaftlichen Bitcoin-Schürfen in sogenannten Pools haben sich die Auszahlungsmodelle "Pay Per Share" (PPS) und "Pay Per Last N Shares" (PPLNS) etabliert. Bei PPS teilt der Pool die Beute unmittelbar nach dem Erlegen schlicht unter allen auf, die Rechenleistung während der Jagd beigesteuert haben. Je mehr Rechenleistung der Einzelne beigetragen hat, desto mehr Anteile (Shares) stehen ihm zu. Das ist nichts für ungeduldige Zeitgenossen, da man nicht absehen kann, wann der nächste Bitcoin-Biock vom Pool erschürft wird. Der Zeitraum, bis der Kontostand wieder einmal wächst, kann Sekunden oder aber auch Tage betragen. Auf die Höhe der Ausschüttung hat die vergangene Zeit - und damit auch die investierte Energie- keinen direkten Einfluss. Bei "Pay Per Last N Shares" (PPLNS) hingegen gruppiert der Pool eine bestimmte Anzahl von Anteilen zu Schichten. Wird ein Bitcoin- Biock gefunden, teilt ihn der Pool zum Beispiel unter den letzten zehn Schichten auf. Das sorgt für einen steten Geldfluss - selbst dann noch, wenn man schon eine Weile nicht mehr am Mining teilnimmt. ----------------------------------------------- ASICs: Unflexibel, aber schnell Mit der Verfügbarkeit sogenannter Application Specific lntegrated Circuits (ASCis) wurde es urplötzlich unrentabel, mit handelsüblicher PC-Hardware nach Bitcoins zu schürfen. Während CPUs und GPUs flexibel Instruktionen interpretieren, lösen ASICs genau eine ganz bestimmte Aufgabe - das aber in beachtlicher Geschwindigkeit. Die Entwicklung der Spezial-Chips ist zwar kostenintensiv, bei hohen Stückzahlen lohnt der Aufwand jedoch, insbesondere weil sie so viel schneller und effizienter sind. Butterfly Labs setzt einen selbstentwickelten Bitcoin- Mining-Cbip namens BitForce SC ein. Er wird mit 65 Nanometern Strukturbreite von dem Halbleiter-Hersteller GlobaiFoundries gefertigt. Bei einer Taktfrequenz von nominell 250 MHzsollen die 16 Engines der ASICs genau 4 GHash/s liefern und dabei 12,8 Watt verheizen. Manche Chips sollen sogar bis zu 294 MHz schaffen, andere dafür weniger funktionstüchtige Engines (mindestens aber 12) haben. Butterfly Labs verkauft die Chips auch an andere Hardware-Hersteller. Insgesamt hat das Unternehmen die Stückzahl auf 100 000 limitiert. Die unter Open-Source-Lizenz stehenden Schaltpläne der BitForce-Plattform offen- baren ein paar interessante Details: So dienen fast alle der 144 BGA-Kontakte des Mining- Chips der Stromversorgung. Jeder Chip hat eine 3-bittige Adresse und kommuniziert über einen seriellen Bus mit einem Atmei-Mikrocontroller. Darüber erhält der Chip seine Aufgaben und meldet über eine Statusleitung, wenn er fertig ist. Ferner hat der Hersteller einen ARM-Prozesser sowie ein LC-Display eingeplant; vermutlich für einen Stand-alone-Betrieb. Außerdem stießen wir auf mit "Chain out" und "Chain in" beschriftete Anschlüsse, durch die man die Miner offenbar in Reihe schalten können soll. Die Boards der von uns getesteten Butterfly- Miner sind nur teilweise mit Chips bestückt. Im Bauch des Jalapeno etwa rechnen zwei BitForce SC, obwohl das Board acht Pads hat. Man könnte mit derselben Platine also auch 4-mal so schnelle Miner bauen. Auch das Design des "Little Single"-Miner ist auf Wiederverwertbarkeit getrimmt.ln dem rechteckigen Aluminiumgehäuse ist alles doppelt vorhanden, bestückt ist davon eine Seite. Das legt den Schluss nahe, dass Butterfly Labs die Chips bewusst dosiert, um das Ansteigen der Difficulty auf mehrere Etappen - und Hardware-Generationen -zu verteilen. Laut seiner Webseite liefert das Unternehmen bereits die Pläne für eine 28-nm-Variante an den Auftragsfertiger (Tape out). Erste Chips soll es noch in diesem Jahr geben. Sie sollen die Effizienz von 3,2 auf 0,6 Watt pro Gigahash und Sekunde verbessern. Eine damit bestückte PCie-Karte soll 175 Watt in 300 GHash/s verwandeln und 2800 US-Dollar kosten. -------------------------------------------------- These are the costs and earning/electricity stats: https://i.imgur.com/CRbuu4L.png ====================================== Source: c't 18.11.2013, Heft 25 So for the peeps who don't speak german in short: 1. The image shows the stats after roughly 1 month of testing 2. There were needed around 150 days to reach the break-even point given the circumstances don't change dramatically (which is not to be expected) 3. The best performance showed the "Little Single" 4. You can calculate your possible ROI/winning here -> BitReturn.com 5. The usb miner "block errupter" wasn't any better than the other miners. (sorry guys, I had the wrong impression in my memory) 6. The usb miner became pretty hot after 2-3 weeks of usage 7. GPU-Mining was a big time waste of investment and electricity 8. Bottom line: if you want to make money you better make sure to get the miner on time 9. Mining is a worthy business only for specialized companies, not for single enthusiasts I also have read somewhere that shipping of mining hardware is most of the time late because the manufacturers earn btcs with it a few weeks before shipping it to you. Title: Re: USB Miners Post by: rezachkata on July 10, 2014, 08:01:37 PM that's brutal and that was last year now it's even harder to gain profit we should seriously make a foundation that will build huge wind colectors for electricity, sell shares and put a hell lot of miners there :D while paying electricity.. nothing is worth it now :/ Well from energetic point of view, it takes more energy to manufacture a sun accumulating collector than it will ever deliver in its whole life ... kind of the same deal like miners :) Title: Re: USB Miners Post by: ThomasCrowne on July 10, 2014, 08:04:01 PM Well there is not much to experience with, most of the usb miners (like that usb stick formats etc) are plug and play (just install drivers and done) Actually you can even pick up USB Bitfury based nano-miners now that can hash anywhere between 1.6GH-2.2GH on the cheap :)I've used like 20 from that usb sticks and 1 bigger one from 5ghs from butterfly labs.. It was a while ago so i made some money out of it, but since some months u get really nothing anymore out of it. (even if u pay nothing for the power it used, u would not get 1 bitcoin with over 8ghs over 1 year, 1 usb stick give u 0.33 ghs.. Ofc its nice to experience with but i think u can beter get some experience with the crypt/x11/x13 coins what u can make with ur CPU / GPU. Ofc if you want bitcoins at the end u can change ur coins for bitcoins. U will get much more out of it if you follow this website and get the right coins to mine. Title: Re: USB Miners Post by: rezachkata on July 10, 2014, 08:28:53 PM that's brutal and that was last year now it's even harder to gain profit we should seriously make a foundation that will build huge wind colectors for electricity, sell shares and put a hell lot of miners there :D while paying electricity.. nothing is worth it now :/ Well from energetic point of view, it takes more energy to manufacture a sun accumulating collector than it will ever deliver in its whole life ... kind of the same deal like miners :) I'v never heard of that :D I knew solar collectors where expensive, but not that expensive! As I said manufacturing them costs more energy than they can produce, not that you won't brake even after buying them. Title: Re: USB Miners Post by: cech4204a on July 10, 2014, 08:48:18 PM They are very slow, but they can be ok if you get them for fair price, which is really hard. Paying more than 1$ for a USB miner is waste of money. Note that you will need at least 100 of them to get some BTC out of it.
Title: Re: USB Miners Post by: rezachkata on July 10, 2014, 08:51:58 PM They are very slow, but they can be ok if you get them for fair price, which is really hard. Paying more than 1$ for a USB miner is waste of money. Note that you will need at least 100 of them to get some BTC out of it. I am not familiar with those. What's the deal with cooling them and where do you plug 100 pieces? Some special device? How much does it cost? Title: Re: USB Miners Post by: cech4204a on July 10, 2014, 08:56:06 PM They are very slow, but they can be ok if you get them for fair price, which is really hard. Paying more than 1$ for a USB miner is waste of money. Note that you will need at least 100 of them to get some BTC out of it. I am not familiar with those. What's the deal with cooling them and where do you plug 100 pieces? Some special device? How much does it cost? You need USB hub, where you can plug like 10 of those in at least and cooling is not big problem, since you can put Aluminum cooler on it, but you have to consider slow speed. On this difficulty you are getting less than 0.01$ per day out of one 330MH USB block erupter. Consider Buying Antminer rather, but be carefull with price. Make calculations first. Title: Re: USB Miners Post by: cech4204a on July 10, 2014, 08:57:21 PM They are very slow, but they can be ok if you get them for fair price, which is really hard. Paying more than 1$ for a USB miner is waste of money. Note that you will need at least 100 of them to get some BTC out of it. I am not familiar with those. What's the deal with cooling them and where do you plug 100 pieces? Some special device? How much does it cost? he was a bit sarcastic,ironic, whatever :D has anyone tought of actually putting your mines in a refrigerator? would that be harmful? No that would be ok solution, but your refrigerator will not be able to cooldown that amount of energy. They are simply not efficient enough for that job. Even 3 kw AC has problems with cooling down a decent rig. Title: Re: USB Miners Post by: rezachkata on July 10, 2014, 09:46:23 PM Is there somebody on this thread who actually broke even and/or earned some profit which was worth mentioning be it from an ASIC miner, FPGA, GPU miner or some other gadget?
Title: Re: USB Miners Post by: ranochigo on July 10, 2014, 10:22:38 PM They are very slow, but they can be ok if you get them for fair price, which is really hard. Paying more than 1$ for a USB miner is waste of money. Note that you will need at least 100 of them to get some BTC out of it. I am not familiar with those. What's the deal with cooling them and where do you plug 100 pieces? Some special device? How much does it cost? he was a bit sarcastic,ironic, whatever :D has anyone tought of actually putting your mines in a refrigerator? would that be harmful? No that would be ok solution, but your refrigerator will not be able to cooldown that amount of energy. They are simply not efficient enough for that job. Even 3 kw AC has problems with cooling down a decent rig. daaamn, how about a freezer? could the rigs keep the temperature above freezing :D Title: Re: USB Miners Post by: notlist3d on July 11, 2014, 12:44:27 AM Hey peeps, there was this test by a few journalists from a magazine in Germany, who managed to buy a few different ASIC miners including a usb miner. So they tried the miners for a month or so and summarized their earnings. The funny thing is that only the usb miners gave ROI, even a bit of profit. Bear in mind that the article is from late 2013 and the btc difficulty has increased exponentially since then, which means that there is pretty much no chance of ROI, not to speak about any profit what so ever. If somebody is interested I could tell you the article and the magazine, just answer to this thread. you should of provided the article right away come on now, post it I'm guessing article is very old considering what it is comparing. As of now there is not a "thumb drive" usb miner that is not a for fun use. Title: Re: USB Miners Post by: smoothie on July 11, 2014, 01:06:04 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. Most miners out on ebay are obselete in profitability. Dont forget the power costs when mining. Title: Re: USB Miners Post by: notlist3d on July 11, 2014, 07:36:08 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. Most miners out on ebay are obselete in profitability. Dont forget the power costs when mining. Good to play with if you want to mine for a little project. But USB's stick miners are pretty much not for profit. Title: Re: USB Miners Post by: ranochigo on July 11, 2014, 07:48:49 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. Most miners out on ebay are obselete in profitability. Dont forget the power costs when mining. Title: Re: USB Miners Post by: ranochigo on July 11, 2014, 09:40:19 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. Most miners out on ebay are obselete in profitability. Dont forget the power costs when mining. Good to play with if you want to mine for a little project. But USB's stick miners are pretty much not for profit. is any miner really for profit? :D Title: Re: USB Miners Post by: ranochigo on July 11, 2014, 09:49:22 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. Most miners out on ebay are obselete in profitability. Dont forget the power costs when mining. Good to play with if you want to mine for a little project. But USB's stick miners are pretty much not for profit. is any miner really for profit? :D I don't understand how can even they make profit I mean, if they have free electricity and mining exceeds the price of electricity wouldn't it be more profitable to sell the electricity? Title: Re: USB Miners Post by: ranochigo on July 11, 2014, 09:54:38 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. Most miners out on ebay are obselete in profitability. Dont forget the power costs when mining. Good to play with if you want to mine for a little project. But USB's stick miners are pretty much not for profit. is any miner really for profit? :D I don't understand how can even they make profit I mean, if they have free electricity and mining exceeds the price of electricity wouldn't it be more profitable to sell the electricity? how can it be more then selling electricity if you can't break even when paying electricity :D is it legal? I don't know about other countries, but here you can directly sell electricity to your electrical provider, the equipment for that however costs around 2000$ Title: Re: USB Miners Post by: ranochigo on July 11, 2014, 10:02:35 AM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. Most miners out on ebay are obselete in profitability. Dont forget the power costs when mining. Good to play with if you want to mine for a little project. But USB's stick miners are pretty much not for profit. is any miner really for profit? :D I don't understand how can even they make profit I mean, if they have free electricity and mining exceeds the price of electricity wouldn't it be more profitable to sell the electricity? how can it be more then selling electricity if you can't break even when paying electricity :D is it legal? I don't know about other countries, but here you can directly sell electricity to your electrical provider, the equipment for that however costs around 2000$ if that is true, how is it not profitable to mine while paying electricity? Title: Re: USB Miners Post by: ranochigo on July 11, 2014, 10:15:50 AM okay, I get it now Yup, that is why most people don't mine any longer, just trading.but you have to have some serious money to pull this off and get ROI right? :) Title: Re: USB Miners Post by: cech4204a on July 11, 2014, 11:30:52 AM You will need at least 100 miners at 330MHs to get like less than 1$ per day, which is very low. They are not profitable anymore.
Title: Re: USB Miners Post by: ranochigo on July 11, 2014, 11:45:10 AM You will need at least 100 miners at 330MHs to get like less than 1$ per day, which is very low. They are not profitable anymore. Those miners actually have less efficiency and requires more space and wiring rather than a simple Plug-and-play mining machine.Title: Re: USB Miners Post by: petersiddle98 on July 11, 2014, 12:31:42 PM The best way to make profit from USB miners are buying it and selling it higher.
Title: Re: USB Miners Post by: notlist3d on July 11, 2014, 01:24:54 PM I've heard that USB miners aren't really useful for mining anymore but I really want to experience what mining is like, even if I'm not really getting anything more than a few satoshis. With them being pretty outdated I was wondering if anyone had one or two left over from when they actually were useful, that would be willing to send them to me. I could probably pay for shipping if need be. I understand that even the cost of the electric needed to use it, is more than I will get out f it, but it is nothing something I will be doing long. Like I said, kinda just want the experience. Thank you all in advance. Most miners out on ebay are obselete in profitability. Dont forget the power costs when mining. Good to play with if you want to mine for a little project. But USB's stick miners are pretty much not for profit. is any miner really for profit? :D I still say yes for ME personally. I have lower priced KWH. I had to do somethings to make it profitable again, sold and shutdown my many GPU rigs. Parted them out. The heat and low earnings did make those where I just could not do it anymore at level I was doing. Moved onto next generations. I feel good about my mining operation. And there are some good hosting options out there for those not able to have miners at home. But I also love mining. I think there is a good mixture with both mining and trading. I know some will say buy and sit on it for years and profit. But so far mining has been good to me. The only secret is buy a quality machine, no pre-order, and have a decent power price or hosting option. And at the end of profitability sell the miner don't put it on a shelf. Title: Re: USB Miners Post by: Kiloday on July 11, 2014, 03:28:59 PM Mining with a USB miner would be worth it if the miner was a gift, the electricity was free, and the pool had no fees.
Title: Re: USB Miners Post by: ranochigo on July 11, 2014, 03:32:32 PM Mining with a USB miner would be worth it if the miner was a gift, the electricity was free, and the pool had no fees. The chances of it happening? Very low. Their hashing speed aren't that fast and can only earn like 500 satoshis per day. Isn't really worth your time IMO, especially when difficulty is rising so fast.Title: Re: USB Miners Post by: Coef on July 11, 2014, 07:09:11 PM Mining with a USB miner would be worth it if the miner was a gift, the electricity was free, and the pool had no fees. Even in that situation, it may be more profitable to sell that USB miner on eBay than to use it on bitcoin mining yourself. :D Title: Re: USB Miners Post by: Coef on July 11, 2014, 07:13:51 PM The best way to make profit from USB miners are buying it and selling it higher. The profit would be very limited after shipping cost and eBay fees. Also, you probably won't have much customers as very few people will buy USB miners nowadays. :D Title: Re: USB Miners Post by: minerpumpkin on July 25, 2014, 10:45:57 PM Mining with a USB miner would be worth it if the miner was a gift, the electricity was free, and the pool had no fees. Even in that situation, it may be more profitable to sell that USB miner on eBay than to use it on bitcoin mining yourself. :D I think keeping one or two is a nice way of remembering the generation of the first ASICs and the good times you had with them. Too much sentimental value to sell them on eBay for a bit of worthless FIAT ;) Title: Re: USB Miners Post by: zhinkk on July 26, 2014, 02:11:04 AM The best way to make profit from USB miners are buying it and selling it higher. The profit would be very limited after shipping cost and eBay fees. Also, you probably won't have much customers as very few people will buy USB miners nowadays. :D You'd be suprised. People who simply hear about the success of mining from others and don't research properly just go out and buy these miners in hopes of profits. Usually people who are very very new to bitcoin. Title: Re: USB Miners Post by: milan74 on August 06, 2014, 10:49:42 PM You can try your luck, but mining bitcoin with a USB is difficult.
Title: Re: USB Miners Post by: guizai on August 06, 2014, 11:03:20 PM i still got 10 running at home. they cant even cover my electricity cost daily. :D
Title: Re: USB Miners Post by: IamCANADIAN013 on August 07, 2014, 03:29:01 AM i still got 10 running at home. they cant even cover my electricity cost daily. :D I had 10 of them running up until a few weeks ago. What are 10 earning these days before electricity costs? If my computer wasn't in my bedroom I'd probably have usb and cubes still mining. I'm not the one that covers the cost of electricity. Title: Re: USB Miners Post by: TheJohn on August 07, 2014, 03:46:42 AM i still got 10 running at home. they cant even cover my electricity cost daily. :D Then why are you still running it? Title: Re: USB Miners Post by: ranochigo on August 07, 2014, 10:59:52 AM i still got 10 running at home. they cant even cover my electricity cost daily. :D Then why are you still running it? Title: Re: USB Miners Post by: Datcracktho on August 07, 2014, 11:33:55 AM USB miners? when did this stop being useful?
Title: Re: USB Miners Post by: ranochigo on August 07, 2014, 12:12:47 PM USB miners? when did this stop being useful? USB miners have no cooling, therefore you can't put efficient ASIC chips there. Also, after so much more efficient ASICs came out, the difficulty skyrocketed and they are unprofitable. These are only for collectors and people who want to mine as a hobby but do not want a big and expensive ASIC which emits a lot of heat.Title: Re: USB Miners Post by: notlist3d on August 07, 2014, 12:41:01 PM USB miners? when did this stop being useful? It's mainly the ROI factor to me. It's much more efficient for other "machines". Most ones with newer chips are high price per GHz. And older ones are cheap like BE's, but speed is slow and add in hub cost. It's most likely far better to get a bigger miner. Title: Re: USB Miners Post by: Bitsaurus on August 07, 2014, 01:04:46 PM USB miners? when did this stop being useful? USB miners have no cooling, therefore you can't put efficient ASIC chips there. Also, after so much more efficient ASICs came out, the difficulty skyrocketed and they are unprofitable. These are only for collectors and people who want to mine as a hobby but do not want a big and expensive ASIC which emits a lot of heat.Say what? Efficient means less wattage per GH/s produced. Efficient chips are exactly what you need to put into a SUB stick. The reason they are no longer made is that the housing and interface for the USB miner is more than the cost of the chip itself. Compare that will industrial miners which have hundreds of chips and only 1 power and data interface - economically it's inefficient to make a USB miner. Title: Re: USB Miners Post by: some1 on August 07, 2014, 01:34:02 PM In other news: https://bitcointalk.org/index.php?topic=719672.0
Beware of untrusted USB devices! |
