Axpertec AXP-500P12P. Nominal power: 500 W, AC input voltage: 115 - 240 V, AC input frequency: 50/60 Hz. Fan diameter: 120 mm. Mean time between failures (MTBF): 100000 h. Certification: CE, CSA, FCC, CB. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -40 - 70 °C