Hardware Secrets take a look at the Coolermaster RS-460-PMSR-A3 460W unit. This one looks ancient by all counts, be it appearance or design (no PFC, old inefficient architecture). The OEM is AcBel, who, while not the most popular, do make some decent units. This one however, has "compromise" written all over it. The capacitors employed are dodgy, no PFC, inefficient switching configuration and even a glaring error in the manufacturer supplied label. All these misgivings and then some are borne out in the load testing portion.