Power supply unit power 650 watt max power 715 watt certificates 80 plus gold noise emission 235 db serial ata connections 15 cable management semi modular mains voltage 100 240 volt efficiency 20 90 efficiency 50 92 efficiency 100 91 cooling system active max fans 1 fan diameter 139 mm power factor correction active special feature power switch motherboard power connectors atx12v 20 pins atx12v 24 pins atx12v 44 pins