Other CPU Cooler compromises silence but excels in performance, and others compromises performance but excels in silence. Good thing that we have a CPU cooler that excels in both silence and performance, introducing be quiet. Dark Rock 3.Dark Rock CPU coolers have long been category leaders, and now the significantly upgraded Dark Rock 3 is even more powerful. This virtually inaudible single-tower CPU cooler puts famous be quiet! Silent Wings technology in your PC where it really counts. They are excellent for overclocked systems and demanding multi-graphics platforms. Dark Rock 3 offers top performance-to-noise ratio and the highest reliability available. Improved cooling efficiency (190W TDP) and really silent operation (only 21.1dB(A) at maximum speed) mean this cooler strikes the perfect balance between cooling and serenity - truly silence and performance without compromises.