Shhh. Be quiet! is a company that's all about keeping the level of noise generated by a PC at a minimum.
The Be Quiet Dark Rock Pro 4 is priced the same as the highly rated and much-loved Noctua's NH-D15 so we were expecting something truly special when unboxing and the company did not disappoint. Not only is this air cooler able to keep even the beefier CPUs cooled under high loads, but it's also silent and easy to install.
Full story from the WindowsCentral blog...