Cooler Master eXtreme Power 650W. Nominal power: 650 W, Input current: 10 A, Hold time: 17 ms. Mean time between failures (MTBF): 100000 h. Certification: Nemko / TUV / cUL / CE / BSMI / FCC / CCC. Operating temperature range (T-T): 5 - 50 °C