DURACOMM's HE1U-2012 Heavy Duty AC to DC 300 Watt Power Supply in a 1U chassis. The HE1U-2012 comes with power factor correction, and four layers of protection against overload, over voltage, over temperature, and short circuit. The internal power supply has ON/OFF remote control, and DC-OK connected to the HE1U-2012 rear terminal strip. The HE1U-2012 comes with a 3 year warranty.