Title: Mining btc from a usb stick? Post by: bitcoin-shark on October 15, 2021, 07:51:59 AM hello i saw a video on you tube of someone who mined btc (even with a certain profit) with usb sticks connected to a notebook, of course the energy savings would be considerable, the demand is it is really possible to mine in this way instead of with an asic?
Title: Re: Mining btc from a usb stick? Post by: kano on October 15, 2021, 08:00:36 AM It would be an ASIC USB stick like this one:
https://bitcointalk.org/index.php?topic=5355470.0 Of course it's 200-300 times slower than a 100TH/s miner so makes 200-300 times less ... All older ones would be slower than that one also. Title: Re: Mining btc from a usb stick? Post by: mocacinno on October 15, 2021, 08:11:57 AM What year was that video you're talking about posted?
I have a couple of those sticks laying around... I stopped using them many, many years ago... Title: Re: Mining btc from a usb stick? Post by: bitcoin-shark on October 15, 2021, 09:16:01 AM so it would be possible almost i'm tempted, of course the gains would be much lower but also the energy consumption would be almost zero, is a fairly recent video of 2021 without wanting to advertise them i place the link in case tell me and i will removed it https://www.youtube.com/watch?v=FyRGkbu-LB8
Title: Re: Mining btc from a usb stick? Post by: mocacinno on October 15, 2021, 10:18:02 AM I haven't watched the complete video... just the first 10 seconds...
This guy is showing a newpac usb miner... You can find them on sites like this one: https://www.bitshopper.de/en/shop/sha-256-miner/usb-miner-bitcoin/newpac/ The device hashes @45Gh/s (maximum... it is rather difficulty to make those usb miners run consistently at those speeds), and at these speeds it'll draw close to 10 Watts. Let's assume for a moment, you're able to get it running @45 Gh/s whilst it draws 7 Watts and disregard the power consumption of the rPi (or pc) you need to connect it to. Let's also assume you only pay 5 cents/Kwh for your power.... These are huge assumptions: you'll probably won't keep it running @45Gh/s consistently, if you do it won't consume only 7 Watts, and you'll probably pay way more than 5 cents/kwh Let's plug in those numbers at a mining calculator: https://www.coinwarz.com/mining/bitcoin/calculator?h=45.00&p=7&pc=0.05&pf=0.00&d=19893045048575.00000000&r=6.25000000&er=1&btcer=59348.38830000&ha=GH&hc=11999.99&hs=-1&hq=1 Even at these absurdly low assumptions, you'll only make 1 cent/day, so it'll take you 12.000 to recuperate your initial investment (not including the S&H, taxes and customs charges... Nor the investment of an rPi). Even if you disregarded electricity completely, this gear would still only make 2 cents/day... Title: Re: Mining btc from a usb stick? Post by: R2-D2R2 on October 19, 2021, 08:20:53 AM ;D ;D You will make 0$ so if you wish to waste money go ahead with these usb sticks ::)
Title: Re: Mining btc from a usb stick? Post by: NotFuzzyWarm on October 19, 2021, 12:42:02 PM ;D ;D You will make 0$ so if you wish to waste money go ahead with these usb sticks ::) No, they will probably make no money. Then again these are aka "Lottery Sticks" because there IS a chance you might get a block from a solo pool. In that case -- cha ching!! If you sometimes buy a lottery ticket then ya might as well go for a stick to try your Luck because at least they are dirt cheap to run.Title: Re: Mining btc from a usb stick? Post by: kano on October 21, 2021, 12:44:30 AM Two things:
1) No you don't go buying USB miners to make a profitable mining company - everyone knows that - no one does that. You buy USB miners for learning about bitcoin mining, for fun and for lottery mining since they use so little power. As I already stated above, the rewards on those old slow small USB miner is 100's of times smaller than a current miner. 2) The current USB miners are around 365GH/s at around 15W i.e. 3 of them, with simple cooling, can get you 1.1TH for around 45W https://bitcointalk.org/index.php?topic=5355470.0 |