Power supply unit eps cpu 1x 8pin 44 8pin power 550 watt certificates 80 plus gold pci express connectors 8 pin 4 serial ata connections 6 cable management fully modular mains voltage 115 240 volt efficiency 100 92 max fans 1 fan diameter 120 mm multi gpu support amd crossfire ready nvidia sli ready mtbf 100 000 hours motherboard power connectors atx12v 24 pins eps12v 44 pins floppy 1 peripheral connectors 4 pin 4 colour bl