Many competing products are in fact high volume OEM custom power supplies that the manufacturer has decided to offer as a standard product offering. Although the cost point seems attractive, there is a large risk that the power supply will obsoleted early if the OEM terminates their program. The HFE series was designed as a standard series and hence will have a long production life. All units have the same look and operation, making it easier to incorporate into multiple programs. The units contain internal ORing FETs allowing them to be used in hot swap, N+1 redundant applications. Up to eight units can be paralleled. The units are up to 93% efficient and the 19” rack can contain up to four modules.