Thermaltake Toughpower QFan 750W, ATX 12V 2.2. Nominal power: 750 W, AC input voltage: 100 - 240 V, Input current: 10/5 A. Fan diameter: 140 mm. Mean time between failures (MTBF): 120000 h. Safety: CE, TUV, FCC, UL, CUL, GOST, BSMI. Operating temperature range (T-T): 10 - 50 °C, Storage temperature range (T-T): -20 - 70 °C, Operating relative humidity range: 20 - 90 %