FSP Group 400W ATX Power Supply Single 2U Size 80 PLUS Gold Certified for Rack Mount Case (FSP400-702US) Output: Output Voltage: +3.3Vdc output : +3.5 Vdc minimum, + 4.8Vdc maximum +5Vdc output : +5.5 Vdc minimum, + 7Vdc maximum +12Vdc output : +13.4 Vdc minimum, + 16Vdc maximum Input Frequency Range: 47 - 63 Hz Input Current: 115V @ 6.3 Amps-rms maximum 230V @ 3.0 Amps-rms maximum MTBF: The power supply have a minimum predicted MTBF(MIL-HDBK-217) of 100,000 hours of continuous operation at 25 degree C, maximum-output load, and nominal AC inout voltage Efficiency: 92% 230V AC Hold-up Time: 115V / 60Hz 16mSec. Minimum @ 100% Load, 230V / 50Hz 16mSec. Minimum @ 100% Load Protection: Over current protection 3.3V:50mV p-p 5V:50mV p-p 12V1:120mV p-p 12V2:120mV p-p -12V:120mV p-p 5Vsb:50mV p-p -5V:100mV p-p Dimensions: 2.76 x 7.87 x 3.94