Power supply unit power 550 watt max power 610 watt certificates 80 plus platinum noise emission 101 db pci express connectors 8 pin 3 pci express connectors 6 pin 7 serial ata connections 8 cable management semi modular mains voltage 100 240 volt mains frequency 50 60 hz efficiency 20 92 efficiency 50 94 efficiency 100 92 cooling system active max fans 1 fan diameter 135 mm rpms 1 200 rpm power factor correction acti