Hardware Secrets took an in-depth look on Enermax PRO82+ 525 W power supply, which the manufacturer claims to have 84% efficiency.
A quote from the article:
>> Enermax PRO82+ 525 W Power Supply Review
Enermax has recently released two high-efficiency power supply series, MODU82+ and PRO82+. The name implies that products from these two series have efficiency of at least 82%, but Enermax says they actually have efficiency of at least 84%. Both use the same internal project, with MODU82+ models using a modular cabling system. Today we are going to take an in-depth look on the 525 W model from the PRO82+ series (also known as EPR525AWT) and see if it can really deliver its labeled power and efficiency. Read on.
>> Enermax PRO82+ 525 W Power Supply Review