ASICMiner Block Erupter USB 330MH/s Sapphire Miner

ASICMiner Block Erupter USB Sapphire Miner

ASICMiner Block Erupter USB 330MH/s Sapphire Miner

by Bitfountain

  • Block Erupter
  • Bitcoin
  • Mining
  • Asic
  • USB miner
  1. Brand: Bitfountain
  2. Personal Computers
  3. Dimensions: 2.95 x 1.38 x 0.47 inches
  4. Shipping Weight: 0.05 pounds
  5. Item ID: upc:028672899814
  6. Item ID: ean:0028672899814
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 (172 customer reviews)

Well Designed, July 24, 2013
Thomas J. Schorsch (New York)
This product is well designed and worked immediately in Ubuntu with BitMinter. They also worked with cgminer. I have two of these and both get around 335 MH/s. They do run hot and if you want them to last you should have a small fan to cool them.

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 bought nine of these through Jones Gear (great seller, great price) along with an Anker® USB 3.0 9-Port Hub + 5V 2.1A Charging Port with 12V 5A Power Adapter [VIA VL812-B2 Chipset and updated Firmware 9801], the ARCTIC Breeze Mobile USB-Powered 92mm Portable Fan, Portable Cooling Solution, Quiet Fan - White and Cosmos ® 8 PCS Aluminum VGA video gaming card RAM Cooling Heatsinks heat sink cooler + Cosmos Cable Tie as the Block Erupters can run hot.

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
This thing gets very hot, be sure to have some air moving across it.

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.

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