Thermaltake Purepower TWV480 PSU
My only standard for these tests is that the power supply be 450 to 600W. Unfortunately, not all 480W's are created equal. Case and point: The 450 LION I just reviewed. It's "only" a 450W, but it did 30A on a 12V rail only rated for 28A. That's pretty good. The Thermaltake we're reviewing today, the TWV480 with active PFC, only has 18A available on the 12V rail. That's only 1A more than the Butterfly power supply I had reviewed earlier, which now seems to have been an "older model" since Thermaltake's website now states that the Butterfly has 18A on the 12V rail as well.