Athena Power AP-U1ATX50 20+4Pin 500W Single 1U EPS Server Power Supply Main Connector: 20+4Pin Output Current: +3.3@20A,+5V@20A,+12V1@20A, +12V2@20A, +12V3@16A, -12V@0.5A, +5VSB@3A Input Voltage: 88 - 264 V Input Frequency Range: 47 - 63 Hz MTBF: 100,000 Hours on Maximum Load at +25 degree C Hold-up Time: 17 ms Minimum at Nominal Input Voltage Dimensions: 1.59 x 8.66 x 3.94 Weight: 3.50 lbs.