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.

No Compromise Silence and Performance

Dark Rock 4 offers an extreme cooling performance and virtually inaudible operation. Perfect for overclocked systems and demanding workstations.

- Silent Wings 135mm PWM fan features an advanced fluid-dynamic bearing and a smooth 6-pole motor
- Optimal balance of cooling and quietness with only 21.4dB(A) at maximum fan speed
- Six high-performance copper heat pipes that provide maximal heat conductance
- Wave-contoured cooling fins for increased air circulation
- Special black coating with ceramic particles enables perfect heat transfer
- Supports an additional 120mm fan; clips are included in scope of delivery
- Easily installable black installation kit can be mounted from above
- Elegant, brushed aluminum top cover with diamond cut finish
- 3-year manufacturer’s warranty
- Product conception, design and quality control in Germany

be quiet! Dark Rock 4. Type: Cooler, Fan diameter: 5.31" (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: 5.35" (136 mm), Depth: 6.28" (159.4 mm), Height: 2.93" (74.3 mm). Product color: Black