Aerocool Ultimate Gaming V12XT 1000W. Nominal power: 1000 W, Efficiency: 85 %, Power protection features: over current, over voltage, short circuit. Fan diameter: 139 mm. Noise level: 33.1 dB. Mean time between failures (MTBF): 120000 h. Safety: CE, CB, TUV, FCC, UL, CUL