Universal AC Input with Active PFC Programmable output voltage & crrent (0~105%) Constant Current limiting Variable fan speed controlled by Load and Temperature Front-end design High power density 16.3W / inch? Forced current sharing at parallel operation Selectable +5V / 0.5A or +9V / 0.3A auxiliary output Remote setting multiple PSU via RS232, RS485 & I?C Remote ON / OFF, Remote sense function Protection: OVP, OLP, OTP, SCP, Fan failure input voltage: 90 ~ 264VAC input frequency: 47 ~ 63Hz DC Voltage Range: 12/15/24/30/36/48/60/150/250/300/350/400Vdc Meet UL 60950-1; EN 60950-1