Power supply unit power 850 watt certificates 80 plus gold pci express connectors 8 pin 4 pci express connectors 6 pin 2 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 140 mm special features intel haswell c6c7 support power switch mtbf 100 000 hours motherboard power connectors atx12v 204 pins 2 x eps12v 8 pins current strengths