be quiet! Dark Rock 4

CPU cooler for Intel and AMD sockets

Pictures may differ from actual products

The Dark Rock 4 from Be Quiet! is the new iteration of the German manufacturer's flagship fridge. The new version offers more performance, easier installation and a silent operation with a 135mm SilentWings.

CPU cooler for Intel and AMD sockets

Overview

Quiet, efficient and easy to install


The Dark Rock 4 from Be Quiet! is the new iteration of the German manufacturer's flagship fan. This new version offers more performance, easier assembly and a perfect silence thanks to the use of a 135mm SilentWings fan.

Elegance and silence

The Dark Rock 4 mounting kit is completely black to match the black ventirad with a beautiful brushed aluminium cover. The compact single tower design allows for excellent heat dissipation in your gaming case with the option to add a second 120mm fan to improve the already near perfect dissipation.

The Dark Rock 4 is equipped with six 6mm copper heatpipes for maximum thermal conductance. They are coupled with the fins to optimise the heat exchange surface and thus offer optimal heat dissipation. The Dark Rock in its latest version can handle a maximum TDP of 200W. All of this takes place in an appreciable silence as the 135mm SilentWings fan generates a maximum of 21.4 dBA.

Main features :

  • 6 mm copper heatpipes for optimal heat dissipation
  • 135 mm SilentWings PWM fan reaches 21.4 dBA at full speed
  • Compatible with an additional 120 mm fan (clips included)
  • Easy to install
  • 200W TDP
  • 3-year manufacturer's warranty
Specifications
Select your criteria

General information

Product name

be quiet! Dark Rock 4

Brand

be quiet!

Model

BK021

Technical specifications

Use

Processor

Processor support

AMD AM4
AMD AM5
Intel 1150
Intel 1151
Intel 1155
Intel 1156
Intel 1200
Intel 1700
Intel 2011
Intel 2011-v3
Intel 2066

Color

Black

Luminous

No

Connector(s)

4-pin Female

PWM

Yes

Heat Pipe

Yes

Adjustable speed

No

Cooling type

Ventirad (active)

Top Flow

No

Dual tower

No

Max CPU TDP

200 W

Fan diameter

135 mm

Min sound level

10.5 dB

Max sound level

21.4 dB

Maximum rotation speed

1400 RPM

Material(s)

Aluminum
Copper

Use

Gamer

AIO radiator compatibility

N/A

Dimensions

Height (fan included)

159.4 mm

Width (fan included)

136 mm

Depth (fan included)

96.3 mm

Height

96 mm

Weight

920 g

Warranties

Commercial warranty

Seller 3 years

Legal warranty

See terms & conditions

Product referenced on 20 Apr 2018

Customer reviews
  • 81%
    76 reviews
  • 12%
    11 reviews
  • 3%
    3 reviews
  • 3%
    3 reviews
  • 1%
    1 review
  • by ClementC
    Posted on 21 Sep 2024
    Bought on 19 Jul 2023 from LDLC
    Number of reviews: 4 Average rating: 8

    Totally silent

    Perfect for silently cooling my processor! The joy of hearing nothing :-)
    Easy to install

    Review automatically translated
  • by RomainF
    Posted on 19 Sep 2024
    Bought on 21 Jan 2022 from LDLC
    Number of reviews: 2 Average rating: 10

    A sick ventirad

    The best ventirad I've ever used, with optimum efficiency even in ultra gaming! Of course it's a ventirad that makes a bit of noise at full power but honestly it's worth it!
    The real drawback is its size, but you can't make an omelette without breaking eggs, forget about the 4 rams 3 strips, yes, but the dual is advantageous, I prefer 2 good strips in dual, which is more than enough!

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  • by VincentA
    Posted on 7 Sep 2024
    Bought on 7 Jun 2024 from LDLC
    Number of reviews: 8 Average rating: 10

    Quiet and efficient

    This fan was needed to cool an i5 12600 KF: boosted to 4.7 Ghz, the temperature rarely exceeds 80 degrees.
    satisfied :)

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  • by MaximeF
    Posted on 12 Aug 2024
    Bought on 12 Jul 2024 from LDLC
    Number of reviews: 1 Average rating: 10

    Correct

    Received the product without any problem, easy to install with a screwdriver, we'll see if it lasts.

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  • by Cindy F
    Posted on 22 Jul 2024
    Bought on 2 Jul 2024 from LDLC
    Number of reviews: 4 Average rating: 10

    Very good ventirad

    Very good ventirad from Be Quiet, equipped with 6 copper heatpipes and quite quiet for a very affordable price.

    Review automatically translated

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