SilverStone Zeus ST56ZF
 

Pumping out a full 38A on the single +12V rail is no joke and keeping it up to specifications at high loads during extreme temperatures is even harder. With efficiency near towards 80%, its no doubt why SilverStone claims that Zeus ST56ZF the most efficient single +12V rail PSU in the world. Read more as to why we found that the ST56ZF was showing numbers similar to the highly priced PCP&C Turbo Cool 510SLI unit.