be quiet! P8-PRO-650W. Nominal power: 650 W, Peak power: 750 W, AC input voltage: 100 - 240 V. Fan diameter: 120 mm. Weight: 2 kg. Mean time between failures (MTBF): 100000 h. Certification: CE CB TÜV Nemko (N) Semko (S) Fimko (FI) Demko (D)