Power supply unit power 850 watt certificates 80 plus gold pci express connectors 8 pin 3 serial ata connections 10 cable management fully modular mains voltage 100 240 volt mains frequency 50 60 hz cooling system active max fans 1 fan diameter 135 mm mtbf 50 000 hours motherboard power connectors 2 x eps 44 pins atx12v 24 pins current 12v 70 a combined power 33v5v 100 watt combined power 12v 840 watt colour black