1. Power Supply included. 2. Most Power Efficient Miner in Existence: 0.098 J/GH ±7% 3. Built-in web management portal. No separate host computer required. 4. Hash Rate: 13.5TH/s ±7% 5. Each AntMiner S9 requires TEN 6-pin PCI-e connectors for 12V DC input (must be very stable power source) 6. Power consumption figures will vary with your PSU's efficiency, the ambient operating temperature and the accuracy of the power meter 7. Bitmain recommends the APW3 only if you have a 205-264v outlet, for voltages lower than 205v please use the EVGA 1600 g2 instead. 8. Please note: this machine is old model, it's used one condition.