"A fully passive 850 W power supply is a notable achievement and a highly desirable product for all lovers of low-noise computer setups. The Cooler Master X Silent Edge Platinum does very well in terms of performance, too. The sole fact that it can steadily pass all tests in high ambient temperatures and deliver more than its rated power if needed, is impressive. Once we go into details, we see a very solid yet not great performance in terms of efficiency and voltage regulation. Don't get me wrong though, the results are not bad at all, you just typically build up your expectations when you're looking at a unit of this price range."
Source: TechPowerUp
