Power supply unit power 500 watt noise emission 30 db pci express connectors 6 pin 1 serial ata connections 4 efficiency 100 82 power factor correction active special feature power switch motherboard power connectors atx12v 20 pins atx12v 204 pins atx12v 44 pins floppy 1 peripheral connectors 4 pin 3 current strengths 3 3v 22 a 5v 19 a 5vsb 2 5 a 12v 0 3 a 12v 34 a combined power 33v5v 130 watt combined power 12v 408