be quiet! Straight Power E8. Nominal power: 700 W, AC input voltage: 100 - 240 V, AC input frequency: 50 - 60 Hz. Fan diameter: 120 mm, Fan location: side. Motherboard power connector: 20+4 pin ATX, Connector(s): IEC C14. Noise level: 22.6 dB. Mean time between failures (MTBF): 100000 h