Enermax PRO87+500W. Nominal power: 500 W, Peak power: 550 W, AC input voltage: 100 - 240 V. Fan diameter: 140 mm, Fan location: side, Cooling type: active. Motherboard power connector: 24-pin ATX. Width: 150 mm, Depth: 160 mm, Height: 86 mm. Mean time between failures (MTBF): 100000 h