Thermaltake W0117 ATX power supply. Nominal power: 750 W, Hold time: 16 ms, Efficiency: 85 %. Fan diameter: 1 mm. Mean time between failures (MTBF): 120.000 h. Certification: Safety / EMI Approvals: CE, CB, TUV, FCC, UL, CUL, and BSMI certified nVidia SLI Certified