Hardwareoverclock.com has posted a review on the Enermax Modu87+ 500 Watt
A quote from the article:
>> Enermax Modu87+ 500 Watt Review (German)
The new Enermax Modu87+ series is 80PLUSR Gold certified and has 87 to 93 percent efficiency @ 230V. Also interesting is the Integrated 13.9cm fan with patented Twister Bearing Technology ensures efficient and ultra silent cooling and long lifetime.
>> Enermax Modu87+ 500 Watt Review (German)