Seventeam ST-550Z-AF. Nominal power: 550 W, AC input frequency: 50/60 Hz, Input current: 5/10 A. Fan diameter: 120 mm. Weight: 2.2 kg. Mean time between failures (MTBF): 100000 h. Safety: CE, TUV, CB, FCC, CUL, BSMI, Certification: 80PLUS Bronze