Be Quiet! BK021 Dark Rock 4 Heatsink & Fan, Intel & AMD Sockets, Silent Wings Fan, Fluid Dynamic


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SKU: BK021 Category:


Be Quiet! BK021 Dark Rock 4 Heatsink & Fan, Intel & AMD Sockets, Silent Wings Fan, Fluid Dynamic

  Dark Rock 4 offers an extreme cooling performance of 200W TDP and virtually inaudible operation. Perfect for overclocked systems and demanding workstations.

    Virtually inaudible Silent Wings 135mm PWM fan

    Achieves only 21.4dB(A) at maximum fan speed

    Six high-performance copper heat pipes

    Airflow-optimized, wave-contoured cooling fins

    Easily installable black installation kit can be mounted from above

    Supports an additional 120mm fan; clips are included in scope of delivery

    Brushed aluminum top cover with diamond cut finish

    3-year manufacturer’s warranty

    German product conception, design and quality control 

Virtually Inaudible Operation

  Even at 100% PWM fan speed noise is an insignificant 21.4dB(A)

    The Silent Wings 135mm PWM fan features nine airflow-optimized 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

  Achieving an incredible performance-to-noise ratio

    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

  The core features that result in high-end cooling

    Dark Rock 4 is equipped with six advanced technology 6mm copper heat pipes that maximize the heat conductance. Airflow-optimized, 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.

Single-Tower Layout

  Powerful cooling for your components

    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

  Stylish and easy to install

    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.


Type: Heatsink and Fan

AMD/Intel: Combo

Compatibility: Intel: LGA 1700 / 1200 / 1150 / 1151 / 1155 / 2011(-3) Square ILM

AMD: AM4 / AM5

TDP: 200W

Fan Connector(s): 4-pin

#Hide#LED Lighting: No

Colour: Black

Material: Fin material: Aluminum

Base material: Copper

CPU contact surface: CNC machined

Weight: 0.92 kg

Fan Dimensions: 135 x 135 x 22 mm

Dimensions: 159.4 x 136 x 96.3 mm

Fan Controller: PWM

Rotation Speed: 1400 RPM (@ 100% PWM)

Fan Bearing: Fluid Dynamic Bearing

Noise level: 10.5 / 15.6 / 21.4 dB(A)

Power: Input: 1.32W

Additional Features: See Overview

MTBF: “300,000 hours (approx.)”

Package Type: Retail

Package Weight: 1.4700 kg

Warranty: 3 Years

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