BE QUIET ! Dark Rock 4 CPU Cooler

Dark Rock is the high-end series of the be quiet! range of CPU coolers. It comprises double-tower, single-tower and top-flow cooler designs. They all offer incredible performance-to-noise ratios and the highest reliability available with absolutely no compromise in silence and performance. Dark Rock coolers are virtually inaudible and place the famous be quiet! SilentWings® technology at the heart of your PC. They are excellent for overclocked systems and demanding multi-graphics platforms.<br><br><b>No Compromise Silence and Performance</b><br><br>Dark Rock 4 offers an extreme cooling performance and virtually inaudible operation. Perfect for overclocked systems and demanding workstations.<br><br>- Silent Wings 135mm PWM fan features an advanced fluid-dynamic bearing and a smooth 6-pole motor<br>- Optimal balance of cooling and quietness with only 21.4dB(A) at maximum fan speed<br>- Six high-performance copper heat pipes that provide maximal heat conductance<br>- Wave-contoured cooling fins for increased air circulation<br>- Special black coating with ceramic particles enables perfect heat transfer<br>- Supports an additional 120mm fan; clips are included in scope of delivery<br>- Easily installable black installation kit can be mounted from above<br>- Elegant, brushed aluminum top cover with diamond cut finish<br>- 3-year manufacturer’s warranty<br>- Product conception, design and quality control in Germanybe quiet! Dark Rock 4 CPU Cooler. Type: Cooler, Fan diameter: 13.5 cm, Rotational speed (max): 1400 RPM, Noise level (low speed): 10.5 dB, Noise level (high speed): 21.4 dB, Bearing type: Fluid Dynamic Bearing (FDB). Width: 136 mm, Depth: 159.4 mm, Height: 74.3 mm. Product colour: Black