be quiet! Dark Rock Pro 2 Processor Cooler

DARK ROCK PRO 2, 26.40dB MAX, 1500 / 1700rpm No Compromise Silence and Performance
The virtually silent Dark RockTM Pro 2 CPU Cooler puts our famous anti-noise technology where it counts: at the heart of your system. Its double tower, double fan design is perfect for overclocked systems and the most demanding multi-graphics platforms.
Twin quiet-optimized SilentWings® 2 fans with PWM function and seven ultra-high performance heatpipes generate massive 220W TDP cooling capacity and strikes the perfect balance between intense cooling and deep serenity. Special wave-contoured heatsink fins further minimize noise-inducing turbulence while maximizing heat transfer.

Very quiet operation
135mm inner and 120mm front SilentWings® fan with PWM function for optimized fan speed throughout the entire working range provides the perfect balance between superior cooling and quiet. The specially developed wave shaped contour of the heatsink fins optimizes airflow and avoids noise generating turbulence.

Highly effective cooling
Seven ultra-high performance heatpipes with an oxygen-free copper layer help to transport the heat directly to the optimal place of the heatsinks.

First-class materials
Dark nickel-plated metal surfaces and a solid brushed aluminum cover. A stable backplate ensures secure attachment, even when the computer is being transported.