Intel ATX 12V 2.3 and EPS 2.91 compliant. 180-264Vac input with active PFC, high efficiency up to 80% Multi 12V rails design to provide superior performance.Cable Management to eliminate clutter and improve airflow inside the case.ARD cooling technology ensures 22dBA at 70% load (1160 RPM of fan)Safety agency approval / EMI approvals CE, CB, TUV, FCC, CUL certified.