Be Quiet! are well known in enthusiast circles, they combine quality German engineering with an attractively designed range of products. Today we are looking at their latest ‘P9′ version of the Dark Power Pro 550W, a supply that will suit a wide audience of enthusiast user, especially those seeking an almost silent design. The Dark Power range of power supplies has been evolving over the years and the latest incarnation is a modular design with 80 Plus Gold Certification. As this is a Be Quiet! product there is a focus on reducing noise as much as possible with the inclusion of a patented SilentWings fan, specially developed by the company to optimise air flow