be quiet! Dark Rock 2 Processor Cooler

DARK ROCK 2, 21.2dB MAX, 1300rpm No Compromise Silence and Performance
The virtually silent Dark RockTM 2 CPU Cooler puts our famous anti-noise technology where it really counts: at the heart of your system. This tower design cooler is excellent for overclocked systems and highly demanding multi-graphics platforms.
Featuring a quiet-optimized 135mm SilentWings® 2 fan with PWM function and six high-performance heatpipes, Dark Rock 2 generates up to 180W 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 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
Six 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.