"Passively cooled computer components are kind of a holy grail item. It’s difficult to design them in such a way that they’ll operate well without failure. Especially when considering variables like climate and system application. In other words, a passively cooled computer component might operate perfectly well in the Pacific Northwest of the US, but find it a challenge to operate within tolerances in Southeast Asia. One such product that needs to be done right are power supplies. Fortunately, electrical innovation has resulted in better designs giving manufacturers like Rosewill the opportunity to provide a great product that works."