DURACOMM's HE1U-2524 high efficiency 1U AC to DC power supply with 2 5A, 27.5 VDC output and 90 – 264 VAC input. The new HE1U series high efficiency rack mount DC power supply is available in three feature levels with a total of nine available models. Designed to provide maximum power in a small package these switching supplies are only 1 RU high and 10.5 in deep, yet are able to provide ample power for your requirements. Built into our sturdy chassis with 1/4 in output studs and a terminal strip for DC-OK and internal power supply remote on / off control. These power supplies are 89 – 92% efficient and incorporate power factor correction on the AC input providing notable energy savings over lower efficiency power supplies.