ASICMiner Block Erupter USB 330MH/s Sapphire Miner
Product DescriptionThe Block Erupter USB series is the second major product of ASICMINER. It serves as a replacement of GPUs. They hash at a rate of 300+ mh/s while drawing only 0.5A (500mA) from the USB port, which is somewhere in the range of 2.6 watts. Compare that power usage to a Radeon 7850 which can regularly draw 130 watts for the same hash rate! The first mass production batch (sapphire) is here, now!
- Uses a standard powered usb port or hub
- Mines at over 300MH/s and with 3 sticks close to 1GH/s
- 500 - 510 mA (2.5W) With Green LED's
- Various Colors (we ship what we have in stock and in hand)
- Includes mining tips and software info
Average Customer Review
(138 customer reviews)
Well Designed, July 24, 2013
Thomas J. Schorsch (New York)
The only issue here is profitability. Power consumption is very low so this is not really a factor. They will use about 22 kwh per year, at about $0.20 per kwh in NYC, the cost is about $4.40 per year. Elsewhere in the US, your cost should be a little less. (This does not count the extra cost for running your PC if you don't already let it run all day.)
At the btc/USD exchange rate of about $95 you will need to earn a little more than 1 btc in order to break even. At the moment (July 24, 2013), these earn about 0.005 btc per day. So it would take about 200 days to earn 1 btc. But since the difficulty is constantly going up, it will take longer than that, probably much longer. If the price of these is too high, these can.
Product Works Great for Hobbyists, DO NOT Buy This As An Investment, September 25, 2013
I got this product because I wanted to learn more about Bitcoin, and I thought it.
Performs as advertised; WILL NEVER PAY FOR ITSELF. Interesting piece of history., November 5, 2013
It does perform SHA-2 hashes at 330 mega hashes per second. However, I'm skeptical of its 2.5 watt power claims. This thing is very hot.
IT WILL NEVER PAY FOR ITSELF. Bitcoin difficulty is continuing to climb. Difficulty just hit 510,929,738 and is forecast to hit 657,648,393 in 13 days. Difficulty == bad news for mining hardware.
If you have a USB Block Erupter right now, it is expected to produce ~0.008 BTC this month (about $2 worth of bitcoin) if run 24/7 in a mining pool. It's bitcoin production will continue to decline in ~30% increments as the bitcoin difficulty rises every 12 to 15 days. I suspect this USB Block Erupter could produce around 0.04 BTC during it's useful life (~6 months). The only hope for recovering your investment is if bitcoin's price rises dramatically.
I bought one simply as a coffee-table/conversation item. This device appears to be at.