Antminer S7 ~4.73TH/s With 2 Fans @ .25W/GH 28nm ASIC Bitcoin Miner Hash Rate: 4.73 TH/s 5% Power Consumption: 1293W 10% Power Efficiency: 0.25 W/GH 10% Built-in web interface for easy setup and configuration Power supply not included, APW3++ recommended.