BE QUIET Dark Rock 4 135 mm Silent Wings Fan CPU Cooler – Black

BE QUIET Dark Rock 4 135 mm Silent Wings Fan CPU Cooler - Black

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About this item

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  • Virtually inaudible Silent Wings 135mm PWM fan
  • Six high-performance copper heat pipes
  • Easily installable black installation kit can be mounted from above
  • Supports an additional 120mm fan; clips are included in scope of delivery
  • Achieves only 21.4dB(A) at maximum fan speed

Product description

Style Name:Dark Rock 4

Product Description

be quiet BK021 Dark Rock 4 Heatsink Fan Intel AMD Sockets Silent Wings Fan Fluid Dynamic BK021 Components Cooling Fans Modding

Legal Disclaimer

Product is sourced and shipped from the European Economic Area (EEA). Product is genuine original from manufacturer authorized distributors.

Box Contains


Weight: 920 g
Dimensions: 9.4 x 13.59 x 15.95 cm; 920 Grams
Brand: Be Quiet
Model: BK021
Colour: Black
Batteries Included: No
Manufacture: BE QUIET
Colour: Black

From the manufacturer

Bequiet Dark Rock 4 Header

No Compromise Silence and Performance

Extreme cooling performance and virtually inaudible operation

Bequiet Dark Rock 4

Bequiet Dark Rock 4

Bequiet Dark Rock 4

Virtually Inaudible Operation

The Silent Wings 135mm PWM fan features nine airflow-optimised fan blades, a six-pole motor for less vibration and a durable fluid-dynamic bearing. Decoupled fan mounting with vibration-isolating elements on the heat sink.

Extreme Cooling Power

No compromise in silence and performance for overclocked systems and demanding graphics applications! Dark Rock 4 provides an impressive rating of 200W TDP and achieves low temperatures even during periods of peak CPU performance

Highly Advanced Design

Dark Rock 4 is equipped with six advanced technology 6mm copper heat pipes that maximise the heat conductance. Airflow-optimised, wave-contoured cooling fins with small dots on their surfaces increase the air circulation. The special black coating with ceramic particles makes a perfect transfer of heat possible.

Powerful cooling for your components

Bequiet Dark Rock 4

Bequiet Dark Rock 4

Single-Tower Layout

The compact single-tower design achieves excellent heat dissipation in small spaces. One fan is pre-installed. It is also possible to add another 120mm fan for even better cooling.

User-friendly Elegance

The mounting kit for the Dark Rock 4 cooler is completely black, perfectly matching the black design of the cooler itself. You can conveniently install the cooler on the motherboard from above. The brushed aluminum top cover with its diamond cut finish adds a touch of elegance to this high-end cooler.

General Data

Model Dark Rock 4
Dimensions (without mounting) 96.3x 136 x 159.4 (L x W x H), (mm)
Total weight (kg) 0.92
TDP (W) 200
Socket compatibility Intel: 1200 / 1150 / 1151 / 1155 / 1156 / 1366 / 2011(-3) Square ILM / 2066 AMD: AM2(+) / AM3(+) / AM4 / FM1 / FM2(+)
Fan model, number 1x Silent Wings 135mm PWM
Decoupled fan mounting Yes
Overall noise level 10.5 / 15.6 / 21.4 (dB(A)) @ 50/75/100% (rpm)