InsideHW.com has posted review for Cooler Master Silent Pro M600 power supply unit

Cooler Master Silent Pro series was created with an idea, but also with influence of users' needs, for as much as possible, silent computer. We had an opportunity to test one of them with output capacity of 600W - Silent Pro M600. At first glance on full product's package we can conclude few things about this device. Firstly, the whole series is extremely silent or to be more precise it is certified at only 16dB. Cooling solution represents a 135mm fan. This exact model that we tested (600W), didn't heat up even under high load.

Cooler Master Silent Pro M600 Review