PC Power & Cooling 950W Silencer MK II High Performance 80PLUS Silver SLI CrossFire Intel Haswell Ready Power Supply- PPCMK2S950 950W Power Supply ATX12V v2.2 and EPS12V, Main connector: 20+ 4-pin ATX 135mm ball-bearing fan, SLI and Crossfire Ready 80+ Silver Certified, Typical load 88% Efficiency Active PFC, MTBF: &gt;100,000 hours