Power supply unit power 650 watt certificates 80 plus gold noise emission 359 db pci express connectors 8 pin 2 serial ata connections 6 cable management fully modular mains voltage 100 240 volt efficiency 20 90 efficiency 50 92 efficiency 100 90 max fans 1 fan diameter 80 mm power factor correction active motherboard power connectors atx12v 24 pins current 12v 54 a combined power 33v5v 90 watt combined power 12v 648 wa