Power supply unit power 500 watt certificates 80 plus platinum pci express connectors 8 pin 2 pci express connectors 6 pin 2 serial ata connections 6 cable management semi modular efficiency 100 89 cooling system passive power factor correction active multi gpu support amd crossfire ready nvidia sli ready motherboard power connectors atx12v 204 pins eps12v 44 pins floppy 1 peripheral connectors 4 pin 5 current strengths 3 3v 20 a