Corsair CS650M Modular PSU, 650 Watt, ATX, ATX12V v2.4, ultra-quiet 120mm fan, varying fan speed in response to temperature, 80 plus GOLD, over 92% efficiency, 1x ATX 24 pin 20 pin, 1x EPS ATX12V 8-4 pin, 4x PCI-E 6 2 pin, 6x SATA, 4x 4 pin peripheral, 1x floppy