Corsair HX650 professional series 650 watt power supply, ultra-quiet, 140mm double ball-bearing fan delivers excellent airflow, up to 90% energy efficiency, active power factor correction (PFC) with PF value of 0.99, AC input from 90~264V,Over voltage, under voltage, over current, and short circuit protection, 1 ATX and EPS connector,MTBF 100,000 hours, 3 years warranty