iStarUSA IS-400R8P 20+4Pin 2 x 400W Redundant PS2 Mini Server Power Supply Main Connector: 20+4Pin Output Current: +3.3V@24A, +5V@24A, +12V@30A, -12V@1A, -5V@0.5A, +5Vsb@2A Input Voltage: 100 - 240 V Input Frequency Range: 47 - 63 Hz Fans: 4 MTBF: >100,000 Hours Efficiency: 74% at full load Protection: OPP (Over Power Protection) OVP (Over Voltage Protection) OCP (Over Current Protection) / module SCP (Short Circuit Protection)