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.nnNo Compromise Silence and PerformancennDark Rock 4 offers an extreme cooling performance and virtually inaudible operation. Perfect for overclocked systems and demanding workstations.nn- Silent Wings 135mm PWM fan features an advanced fluid-dynamic bearing and a smooth 6-pole motorn- Optimal balance of cooling and quietness with only 21.4dB(A) at maximum fan speedn- Six high-performance copper heat pipes that provide maximal heat conductancen- Wave-contoured cooling fins for increased air circulationn- Special black coating with ceramic particles enables perfect heat transfern- Supports an additional 120mm fan; clips are included in scope of deliveryn- Easily installable black installation kit can be mounted from aboven- Elegant, brushed aluminum top cover with diamond cut finishn- 3-year manufacturer’s warrantyn- Product conception, design and quality control in Germany

Model: Dark Rock 4

Datasheet: http://objects.icecat.biz/objects/mmo_54438159_1592403489_5985_26591.pdf

Manual: http://objects.icecat.biz/objects/mmo_54438159_1522998611_4932_9174.pdf