*POWER SUPPLY IS NOT INCLUDED* If you have 220v-264v power, then Bitmain recommends using the APW3++ power supply. If you have 110v-120v power (standard power outlets in the US), then the following power supplies have been confirmed to work well: -Bitmain's APW5 -Two Bitmain APW3++ -EVGA's SuperNova 1600 G2 Specifications: 1. Hash Rate: 13.5 TH/s ñ5% 2. Power Consumption: 1323W ñ10% 3. Power Efficiency: 0.098 W/GH ñ7% 4. ASIC Chip: 189 x BM1387 5. Dimensions: 350mm(L)*135mm(W)*158mm(H) 6. Cooling: 2x 12038 fans 7. Network: Ethernet cable is not included