Corsair RM750i Modular PSU, 750 Watt, ATX, ATX12V v2.4, zero rpm 135mm fan, varying fan speed in response to temperature, 80 plus GOLD, 90% efficiency, 1x ATX 24 pin 20 pin, 1x EPS ATX12V 8-4 pin, 4x PCI-E 6 2 pin, 8x SATA, 7x 4 pin peripheral, 2x floppy