Bitcoin Forum
August 22, 2017, 05:16:08 PM *
News: Latest stable version of Bitcoin Core: 0.14.2  [Torrent].
 
   Home   Help Search Donate Login Register  
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 [26] 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 »
  Print  
Author Topic: [Announcement] Block Erupter USB  (Read 245565 times)
muyuu
Donator
Legendary
*
Offline Offline

Activity: 966



View Profile
May 17, 2013, 05:26:33 PM

The 7970 card will still be worth a couple hundred dollars in a year; these USB sticks won't be worth anything.

sentimental value? Cheesy

They will be in museums. A piece of history Cheesy

GPG ID: 7294199D - OTC ID: muyuu (470F97EB7294199D)
forum tea fund BTC 1Epv7KHbNjYzqYVhTCgXWYhGSkv7BuKGEU DOGE DF1eTJ2vsxjHpmmbKu9jpqsrg5uyQLWksM CAP F1MzvmmHwP2UhFq82NQT7qDU9NQ8oQbtkQ
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1503422168
Hero Member
*
Offline Offline

Posts: 1503422168

View Profile Personal Message (Offline)

Ignore
1503422168
Reply with quote  #2

1503422168
Report to moderator
1503422168
Hero Member
*
Offline Offline

Posts: 1503422168

View Profile Personal Message (Offline)

Ignore
1503422168
Reply with quote  #2

1503422168
Report to moderator
alibert
Full Member
***
Offline Offline

Activity: 196


View Profile
May 17, 2013, 08:29:41 PM

In Germany 1 kwh costs about 0.27 Eurocent, so GPU mining makes no sense.

erk
Hero Member
*****
Offline Offline

Activity: 588


View Profile
May 17, 2013, 11:24:10 PM



But the 7950 uses 300w vs. only 10w for the two USB Erupters (they use ~5w each).  So ~600MH/s for each, but vastly different power usage.
10Watts, lol, you convinently omitted the power consumption of the host computer on which the USB device depends. The cheaper price of the GPU pays for an lot of electricity. The point I am trying tp make is the USB devices are overpriced, the ASIC chip on them is worth under $10, and I bet all the rest of the parts are too. Look at how many parts you get on a video card by comparison.

yxt
Legendary
*
Offline Offline

Activity: 1988



View Profile WWW
May 17, 2013, 11:27:20 PM

GPU: + x W  host PC
USB: + x W  r-pi

erk
Hero Member
*****
Offline Offline

Activity: 588


View Profile
May 17, 2013, 11:30:21 PM

GPU: + x W  host PC
USB: + x W  r-pi

BFL 5GH/s + R-Pi  ($350 approx)
BlackLilac Grant
Member
**
Offline Offline

Activity: 72



View Profile
May 17, 2013, 11:55:21 PM

GPU: + x W  host PC
USB: + x W  r-pi

BFL 5GH/s + R-Pi  ($350 approx)



Magic = 1,000,000 TH/s free!

There is no product you can buy from BFL that hashes at 5 GH/s and will ship any time this year, if ever. Comparing a real in-hand product to vapourware is silly.
HTML5 Gordon
Full Member
***
Offline Offline

Activity: 181



View Profile
May 17, 2013, 11:55:59 PM

GPU: + x W  host PC
USB: + x W  r-pi

BFL 5GH/s + R-Pi  ($350 approx)


Ah.  If only any of us could get one anytime soon.  Yes, I have BFL pre-orders.

Anyway, no matter what else you throw out there, the USB erupter is more efficient than a GPU, and therefore will cost less than a GPU over the long term.

My BFL devices are getting great power consumption numbers - 0W!  Unfortunately, they are also getting me 0 BTC right now.  Wink
erk
Hero Member
*****
Offline Offline

Activity: 588


View Profile
May 18, 2013, 12:02:01 AM

GPU: + x W  host PC
USB: + x W  r-pi

BFL 5GH/s + R-Pi  ($350 approx)



Magic = 1,000,000 TH/s free!

There is no product you can buy from BFL that hashes at 5 GH/s and will ship any time this year, if ever. Comparing a real in-hand product to vapourware is silly.

Of course you have absolutely no proof of this claim

I placed my order for a 5GH/s unit on 5th. April, it cost me 2.62BTC including shipping, in order to get 5GH/s worth of USB devices you would have to purchase 17 units, and spend over 33BTC, even if my order takes several months to turn up, I will still be ahead.

I will also be purchasing an Avalon chip based device, but no the Block Erupter USB, it's a ripoff at 1.99BTC or more.


BlackLilac Grant
Member
**
Offline Offline

Activity: 72



View Profile
May 18, 2013, 12:13:51 AM

GPU: + x W  host PC
USB: + x W  r-pi

BFL 5GH/s + R-Pi  ($350 approx)



Magic = 1,000,000 TH/s free!

There is no product you can buy from BFL that hashes at 5 GH/s and will ship any time this year, if ever. Comparing a real in-hand product to vapourware is silly.

Of course you have absolutely no proof of this claim

I placed my order for a 5GH/s unit on 5th. April, it cost me 2.62BTC including shipping, in order to get 5GH/s worth of USB devices you would have to purchase 17 units, and spend over 33BTC, even if my order takes several months to turn up, I will still be ahead.

I will also be purchasing an Avalon chip based device, but no the Block Erupter USB, it's a ripoff at 1.99BTC or more.




I hope by "several months" you mean 10-12 months, or never.

What claim did I make that I have no proof of? That ASICMINER USBs are in-hand, or that BFL has currently missed their promised shipping date by ~ 8 months and counting, and that orders placed today likely won't be shipped for at least that long?

Or were you referring to my claim about magic? If so you're right, I can't back that up.

I really do hope you get your unit in a reasonable time frame, but I hope you're not counting on it, because there is zero evidence that they will ever be able to fill all of their early pre-orders, let alone those placed in 2013. Meanwhile, my ASICMINER blades and USBs will be hashing away next week. 
Xian01
Legendary
*
Offline Offline

Activity: 1302


󮀓1刎


View Profile
May 18, 2013, 12:20:52 AM

I placed my order for a 5GH/s unit on 5th. April, it cost me 2.62BTC including shipping, in order to get 5GH/s worth of USB devices you would have to purchase 17 units, and spend over 33BTC, even if my order takes several months to turn up, I will still be ahead.

 You are not taking into consideration reasonable shipping time for your April 5th order, nor are you taking network difficulty into consideration 6-8 months from now - hopefully when you might receive the product you have ordered.

 If you were to spend those 33 BTC for 17 Erupter units right now, you are starting to ROI much sooner. Your BFL preorder is a depreciating asset with every passing day, and unless you are a June or July 2012 order, my gut is telling me "Good luck seeing your order this year."
yxt
Legendary
*
Offline Offline

Activity: 1988



View Profile WWW
May 18, 2013, 01:15:59 AM

There is no product you can buy from BFL that hashes at 5 GH/s and will ship any time this year, if ever. Comparing a real in-hand product to vapourware is silly.

Of course you have absolutely no proof of this claim

Is a reasonable conclusion based on BFL track record from FPGA preorder days until now

remember Nov 2012: "shipping in 14 days"

martynw2000
Member
**
Offline Offline

Activity: 117



View Profile
May 18, 2013, 12:20:44 PM

The mathematics on this product don't work out.

Minimum order of 300 units at 1.99BTC each = 597BTC

Assuming a mining difficulty increase of 10% every 11 days or so, in 6 months time at 90,000Mh/ps you will have earned back 385BTC - and by then you'll only be earning 0.77BTC per day. In a year, you'd still only have 456BTC, and you'd likely never get back to 597BTC unless you increased your hashing rate by buying more units. Plus this is assuming a start date of today - likelyhood if I placed an order today for 300 units, delivery could be any unknown time in the future when the difficulty has already gone up x amount. 

Naturally, the difficulty MIGHT not go up 10% every 11 days, and the value of BTC MIGHT go up a lot, but there's no way to tell. 

At current rates 597BTC will cost you ~$73,500 - not many people have that amount of money laying around, so most would have to get a loan to do so - so factoring in an interest rate for that too, it's just not viable IMHO.
Chrithu
Full Member
***
Offline Offline

Activity: 224


View Profile
May 18, 2013, 12:28:06 PM

Hi.

This thing looks quite interesting.

Getting basically the same hashrate as I currently get out of my GPUs at only a fraction of the power consumption and without being unable to game at the same time as I mine on my rig is temping, VERY tempting.

What currently still let's me shy away is the high price. Is there any chance that the price will drop later on, as demand goes up? Because at that price I could aswell get me a nice 7000 series GPU which won't be near as efficient for mining but could be used for gaming and besides is something I have planned to obtain either way sooner or later this year for gaming purposes (you know ESO and STar Citizen around the corner).

Also I'd like to know if you or any retailer is planing to put the things in a nice casing?

Being a Techgeek is nice and stuff. But operating such things with open circuits in a room that isn't safe from dust is just asking for pulverizing the investment if you ask me.

klotzenhotz
Sr. Member
****
Offline Offline

Activity: 252


View Profile
May 18, 2013, 02:08:59 PM

2 x USB Miner vs. Radeon 7970, a simple power calculation for german users:

7970: let's give it 180W (GPU only) -> 0,18 kWh x 24h x 31d x 0,27 EUR = 36 EUR / month ~ 46 USD / month power costs
2 x USB Miner: 5W -> 0,005 kWh x 24h x 31d x 0,27 EUR = 1 EUR / month ~ 1.28 USD / month power costs

Well, in my book there are no open questions...
pornluver
Hero Member
*****
Offline Offline

Activity: 546


View Profile
May 18, 2013, 02:11:13 PM

How many megaherz  Radeon 7970 is?

klotzenhotz
Sr. Member
****
Offline Offline

Activity: 252


View Profile
May 18, 2013, 02:13:15 PM

How many megaherz  Radeon 7970 is?

What do you mean? In general? Or OCed? I'm running mine with ~ 1135 MHz, it's not very stable above that, but that's very individual.
martynw2000
Member
**
Offline Offline

Activity: 117



View Profile
May 18, 2013, 03:14:39 PM


Well, in my book there are no open questions...


Except that there's a minimum order quantity of 300 units @ 1.99BTC per unit = 597BTC.

That's a serious snag in my book.....


Plus you'll need 30 x powered USB hubs, plus a number of computers to run it all, because you can only attach 127 USB devices to 1 computer assuming you have enough bandwidth on your USB ports... which is unlikely. Without seeing the devices, I'd say you "might" get 50 on one computer, so you'll need 6 computers running too along with the associated power costs.
CumpsD
Sr. Member
****
Offline Offline

Activity: 476


View Profile
May 18, 2013, 03:29:55 PM


Well, in my book there are no open questions...


Except that there's a minimum order quantity of 300 units @ 1.99BTC per unit = 597BTC.

That's a serious snag in my book.....

Plus you'll need 30 x powered USB hubs, plus a number of computers to run it all, because you can only attach 127 USB devices to 1 computer assuming you have enough bandwidth on your USB ports... which is unlikely. Without seeing the devices, I'd say you "might" get 50 on one computer, so you'll need 6 computers running too along with the associated power costs.

Just do a group buy? Like the many that are ongoing now and have already been ordered.
klotzenhotz
Sr. Member
****
Offline Offline

Activity: 252


View Profile
May 18, 2013, 03:35:26 PM


Well, in my book there are no open questions...


Except that there's a minimum order quantity of 300 units @ 1.99BTC per unit = 597BTC.

That's a serious snag in my book.....


Plus you'll need 30 x powered USB hubs, plus a number of computers to run it all, because you can only attach 127 USB devices to 1 computer assuming you have enough bandwidth on your USB ports... which is unlikely. Without seeing the devices, I'd say you "might" get 50 on one computer, so you'll need 6 computers running too along with the associated power costs.

Just bought 3 pieces on a group buy. So, no problems at all.

BTW: Compared to 150 x 7970 Radeon... Wink
dnaleor
Legendary
*
Offline Offline

Activity: 1428


Want privacy? Use Monero!


View Profile
May 18, 2013, 05:15:35 PM

Really great idea!

It was to be expected that the price for the first batch would be high. The geeks with to much BTC just buy, no matter the price. Even priced at 10 BTC they would have a good sale.

I consider myself a geek, but I didn't mine in the early days, so I don't have a lot of BTC to throw around (I have give or take 5 BTC).

I really want such a USB stick, but 225$, that is just TOO MUCH (consider the production cost well being below 50$)
I would start buying at 120$ (1 BTC)
If the price is 0.5 BTC I would buy a lot. I have plenty of friends who are interested in Bitcoin and would buy one. Or i would give them as present for their birthday. And we know it's possible to produce them @ a price 0.5 BTC

Logic learns us that great ideas will be copied and produced for less money, this one is a good challenger:
https://bitcointalk.org/index.php?topic=196281.0

It would depend on who will be the fastest with a low price.

Searching for a trusted escrow service? Check my trust. I use a Trezor device for my escrow services, so your coins are safe. Fee: 0.5% or 0.05 BTC, whichever is lower
I support the largest public transparent p2p ledger Bitcoin (16TwXyEmpz7xKHbyVufZECXGFmUH9wHUyW) and the best private fungible digital cash Monero (dnaleor.weuse.cash)
Cetere mi opinias ke Dasho estas detruenda.     |     1Credit - Fair emission, better than BTC > CLCqECaYpCahgKRsXJiVBzgsiz57ZHfr4u
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 [26] 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 »
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!