Power supply unit power 520 watt certificates 80 plus bronze noise emission 22 db pci express connectors 8 pin 1 pci express connectors 6 pin 1 serial ata connections 6 efficiency 100 87 cooling system active max fans 1 power factor correction active motherboard power connectors atx12v 204 pins atx12v 44 pins atx12v 4 pins eps12v 8 pins floppy 2 peripheral connectors 4 pin 6 current strengths 3 3v 24 a 5v 24 a 12v 40 a