Power supply unit power 650 watt certificates 80 plus bronze pci express connectors 8 pin 4 serial ata connections 6 cable management fully modular mains voltage 100 240 volt mains frequency 50 60 hz cooling system active max fans 1 fan diameter 140 mm current 12v 54 a combined power 33v5v 120 watt combined power 12v 650 watt colour black