Xigmatek NRP-VC503. Nominal power: 500 W, AC input voltage: 115 - 230 V, Input current: 5 - 10 A. Fan diameter: 120 mm. Mean time between failures (MTBF): 100000 h. Certification: CE, TUV, UL. Operating temperature range (T-T): 5 - 40 °C, Storage temperature range (T-T): -20 - 70 °C, Operating relative humidity range: 5 - 85 %