Corsair CX500. Nominal power: 500 W, Efficiency: 80 %, Power protection features: Over power, Over voltage, Short circuit, Under voltage. Fan diameter: 120 mm. Weight: 2.013 kg. Mean time between failures (MTBF): 100000 h. Package dimensions (WxDxH): 190.5 x 266.7 x 98.552 mm, Package weight: 2.267 kg