The ACE-R4140AP is manufactured by iEi and is a 400 W, ATX, mini-sized redundant power supply which has an active power factor correction feature. The unit is resistant to short circuits, over currents, over powers, and over voltages, and it incorporates power fault alarm signals.
It has has a mean time between failures of up to 100,000 hours, and is suitable for applications that deal with 200 V AC up to 240 V AC.