Antminer S7 ~4.73TH/s @ .25W/GH 28nm ASIC Bitcoin Miner

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Features

  • Processor: 1 GHz
  • RAM: 512 MB
  • Hard Drive: 512 MB

Description

S7 Specifications: 1. Hash Rate: 4.73 TH/s ±5% 2. Power Consumption: 1293W ±10% (at the wall, with APW3, 93% efficiency, 25C ambient temp) 3. Power Efficiency: 0.25 W/GH ±10%(at the wall, with APW3, 93% efficiency, 25°C ambient temp) 4. Rated Voltage: 11.60 ~13.00V 5. Chip quantity per unit: 135x...

User reviews

Solid quality and built for efficiency. Extremely easy to setup using web interface. Bitmain even offers software to find the device if added via DHCP and you can't find the IP. Fan speeds can be dynamic or static. This can help reduce noise as long as you have adequate cooling. I keep my fan speeds at 30% with an AC blasting at the intake and my core temps stay around 50C. It's skeleton design makes power supply balancing easy. 50+ days straight of up time so far. Hashrate is true to speed. i average between 4.7-4.9TH/s.Things to note for beginners:These machines are power hungry. Have dedicated circuits just for these devices.They put out A LOT of heat. Have adequate ventilation.The fans are LOUD! take this into consideration when it comes to choosing a location.
UPDATE 9//1816 - We unplugged our S7s on 9/2/16.In Dec. 2015 we grossed $300 with one S7, in March 2015 we grossed $250 with that same, single miner. Between the halving, the price of bitcoin going down and the hashrate of our pool almost doubling, the S7s aren't profitable anymore. We were also tired of the noise. I've deleted earlier versions of my review, so the comments may refer to the older postings.Instead of buying miners, we would have come out ahead if we had bought Bitcoin at $250.
If you want to heat your house with electricity and get reimbursed in bitcoin this could make it happen. Try running it only in the winter.....when you need a heating source and watch the ROI come faster.


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