No buyers with less than 10 feedback please.  THESE ARE BATCH 16 S7'S 4.73 TH/s units. Single fan Excellent conditon!!!

Up for grabs, one fully functional and in excellent used condition Bitmain S7 Bitcoin miner, no power supply included. Specs below. Shipping in the US flatrate via Fedex ground/home delivery. Hawaii and Alaska may incur a slight upcharge in rate. I do not ship these overseas.

Look at my feedback, I have sold hundreds of miners and all my customers are happy. Due to the dynamic nature of bitcoin and bitcoin mining, we do not accept returns on these. I do guarantee these to run as advertised and not be DOA. They are great working clean units.

These batch 16 single fan 4.73 TH/s units run rock solid. At first when we ordered these we too were skeptical of the single fan setup. It turned out these are by far one of their best batches as we have had zero problems running over 180 of these in our facility and didn't lose a single one from this batch. That is why we held these to sell for last as they are in our opinion one of the best s7's to run. Please review my feedback, everyone is happy with the miners they get from me. Condition, clean, solid running miners!

S7 Specifications for Batch 16:

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 J/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 BM1385
6. Dimensions: 301mm(L)*123mm(W)*155mm(H)
7. Cooling: 1x 12038 fan
8. Operating Temperature: 0 °C to 40 °C
9. Network Connection: Ethernet
10. Default Frequency: 700M

Notes:

1.   Power consumption figures will vary with your PSU’s efficiency, the ambient operating temperature and the accuracy of the power meter.

2.   PSU: A power supply unit is not included, and you will need to provide an ATX PSU. There are 3 PCI-e connectors for +12V DC input on each hashing board and all 3 are required. Do not connect more than one PSU to the same hashing board!

Bitmain recommends the APW3-12-1600-B2 power supply for use with the S7. One power supply support one S7.

3. Separate power supply to control board: there is one additional 6pin PCI-e connector on the IO board which must be connected to the PSU to get power. Be sure to power on the miner after ALL the 10 PCIE connectors connected to power supply. When using differnt PSU and you want to power off the miner, be sure to disconnect all the PSU from power.

• This machine is not only our most efficient ever, using less than half the energy per gigahash of the S5, but it is also our most powerful miner to enter mass production (the S5+ had a higher hashrate but was sold on a limited basis). At 0.25 joules per gigahash, this is the most efficient machine available to the bitcoin mining public.