PC Modding Malaysia posted a review on the SilverStone ST50EF-Plus-SC PSU

The power supply looks and feels like the high-end brothers and everything is kept within the black theme. It also features a silent running 120mm fan which stayed pretty silent under heavy loads. In short, this is the power supply that you should be checking out if you plan to build a decent HTPC or SFF rig. The cables were short and perfect for any chassis that does not have much space for cable hiding/routing. The overall build quality was top notch and for $90, we didn't expect such exceptional package with the ST50EF-Plus-SC. The rails held up pretty well as the +5V and +3.3V showed exceptional stability without any fluctuations.

SilverStone ST50EF-Plus-SC PSU Review