Power supply unit power 650 watt certificates 80 plus bronze pci express connectors 8 pin 4 serial ata connections 8 mains voltage 100 240 volt mains frequency 47 63 hz cooling system active max fans 1 fan diameter 120 mm power factor correction active motherboard power connectors atx12v 20 pins atx12v 204 pins atxeps 44 pin manufacturers warranty 3 years