Corsair CMPSU-620HX 620W PSU
 

In terms of in-use reliability, the CMPSU-620HX did not waver at all under testing, and maintained highly efficient numbers throughout. We put it up against some of the best PSUs we've tested and it did not embarrass itself. Compared to the Enermax Liberty, its numbers were more or less on par. Where we feel the Corsair has a clear advantage is the warranty and the cabling.