It is somewhat low... but pay attention to the price. For a 550W, independt rail, well-built PSU you don't have to sell your shorts. :) I had no difficulties in running an A64 @ 2250 MHz, 2x 512 MB TCCDs @ 250 MHz, 1x 6600 GT, 2x 7200 rpm HDDs etc... with this exact Gainward. Of course, the rig...