% £-70.95
Be Quiet! BK021 Dark Rock 4 Heatsink & Fan, Intel & AMD Sockets, Silent Wings Fan, Fluid Dynamic, 200W TDP
Be Quiet! BK021 Dark Rock 4 Heatsink & Fan, Intel & AMD Sockets, Silent Wings Fan, Fluid Dynamic, 200W TDP
Be Quiet! BK021 Dark Rock 4 Heatsink & Fan, Intel & AMD Sockets, Silent Wings Fan, Fluid Dynamic, 200W TDP
Be Quiet! BK021 Dark Rock 4 Heatsink & Fan, Intel & AMD Sockets, Silent Wings Fan, Fluid Dynamic, 200W TDP
BEQUIET

Be Quiet! BK021 Dark Rock 4 Heatsink & Fan, Intel & AMD Sockets, Silent Wings Fan, Fluid Dynamic, 200W TDP

Product SKU: HEATBQDARK4-Z
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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.
 

Description

Specification

  • Type: CPU Air Cooler
  • AMD/Intel: Combo
  • Compatibility: Intel: 1851 / 1700 / 1200 / 1150 / 1151 / 1155 / 1156 / 1366 / 2011(-3) Square ILM / 2066

    AMD: AM5 / AM4
  • TDP: 200W
  • Fan Connector(s): 4-pin
  • Fan Controller: PWM
  • Fan Bearing: Fluid Dynamic Bearing
  • Rotation Speed: 1400 RPM (@ 100% PWM)
  • #Hide#LED Lighting: No
  • Colour: Black
  • Material: Fin material: Aluminum
    Base material: Copper
    CPU contact surface: CNC machined
  • Weight: 0.92 kg
  • Dimensions: Overall dimensions without mounting material:
    (L x W x H) 96 x 136 x 159 mm
  • Fan Dimensions: 135 x 135 x 22 mm
  • 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
  • #Hide#1851 Socket: Supports Socket 1851
  • #Hide# AM5 Socket: Supports Socket AM5
  • #Hide#1700 Socket: Supports Socket 1700
  • #Hide#AM4 Socket: Supports Socket AM4
  • #Hide#1200 Socket: Supports Socket 1200
  • #Hide#115x Sockets: Supports Sockets 115x
  • #Hide#2066 Socket: Supports Socket 2066
  • #Hide#1366 Socket: Supports Socket 1366
  • #Hide#2011(-3) Socket: Supports Socket 2011(-3)

Delivery & Shipping Policy

Last updated: 19/09/2025

At Tech Direct UK, we aim to get your order to you as quickly and efficiently as possible. Please see below for our delivery terms.

1. Delivery Options & Costs

  • Free Delivery – Orders over £50 qualify for free UK standard delivery.

  • Standard Delivery – Orders under £50 are charged at £4.99.

2. Delivery Times

  • Next Day Delivery – The majority of items are shipped via next day courier if ordered before 2:00pm (Monday–Friday).

  • Orders placed after 2:00pm, on weekends, or bank holidays will be processed the next working day.

  • Larger or Heavy Items – Certain products (e.g., heavy furniture, oversized goods) may take 2–5 working days for delivery. Estimated times will be displayed at checkout.

3. Delivery Areas

  • We deliver to all mainland UK addresses.

  • Deliveries to remote areas (e.g., Highlands, Islands, Northern Ireland) may take longer or incur additional charges — these will be shown at checkout before confirming your order.

4. Tracking Your Order

  • Once dispatched, you will receive an email confirmation with tracking details (where available).

  • You can track your delivery via the courier’s website.

5. Missed Deliveries

  • If you are not available at the time of delivery, the courier will leave a card or attempt redelivery.

  • Repeated failed delivery attempts may result in the parcel being returned to us. In this case, re-delivery charges may apply.

6. Risk of Loss

  • Risk of loss or damage to the goods passes to you once they are delivered.

  • Please inspect your order upon receipt and notify us of any issues within 48 hours.

7. Contact Us

If you have any questions about delivery, please contact us:
📧 Email: support@techdirectuk.com

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