Some specifications. Hash Rate: 1000 GH/s±10% Power Consumption: 680 Watt at the wall * Power Supply: 12V DC, 51A minimum. 4 PCI-e connectors for +12V DC input Dimensions: 395 mm x 160 mm x 165 mm N.W: 8.5KG Fans: 12038 PWM fan X1. Operating Temperature: 0 °C to 40 °C * with 90% of PSU efficiency