be quiet! Pure Rock 3 LX - Processor Air Cooler, 12cm, Black

Introducing the be quiet! Pure Rock 3 LX - Processor Air Cooler

Unleash Unmatched Cooling Power in a Compact Design

The be quiet! Pure Rock 3 LX is engineered to provide high-performance cooling while maintaining a remarkably compact form factor. Featuring an advanced Light Wings LX 120mm PWM fan, this 12cm air cooler delivers outstanding airflow, all while operating at whisper-quiet levels.

Key Features

Compact Powerhouse: Despite its smaller size, the Pure Rock 3 LX excels in cooling efficiency, enabling your CPU to reach peak performance.
Hassle-Free Installation: Equipped with a preinstalled mounting system, the setup process is quick and easy, allowing you to concentrate on your PC usage without interruptions.
Whisper-Quiet Operation: Experience a serene computing environment free from the distraction of loud fan noise.
Sleek Aesthetic Design: Its elegant black finish complements any build, elevating the visual appeal of your setup.

Specifications

Product Code: BK040

Fan Size: 12cm

Color: Black

This CPU cooler is not only performance-driven but also made for reliability, making it an ideal choice for gamers, content creators, and anyone who demands excellence from their system.

Why Choose the be quiet! Pure Rock 3 LX?

Whether you are enhancing your current PC or constructing a new one, the Pure Rock 3 LX is designed for users who appreciate both high performance and aesthetic value. Discover an ideal balance of thermal capability and silent operation, backed by be quiet!’s commitment to quality craftsmanship.

Elevate your cooling performance today by investing in the Pure Rock 3 LX!

Main

Brand

Be quiet!

Warranty

3 years warranty

Product code

BK040

EAN/UPC code

4260052192498

Design

Base plate material

Copper

Fan connector

4-pin

Fins material

Aluminium

Illumination colour

Multi

Illumination LED

Yes

Number of fans

1 fan(s)

Number of heat pipes

4

Product colour

Black

Logistics data

Products per shipping (inner) case

16 pc(s)

Shipping (inner) case gross weight

14.8 kg

Shipping (inner) case height

45 cm

Shipping (inner) case length

55.2 cm

Shipping (inner) case width

34.2 cm

Packaging content

Mounting kit

Yes

Performance

Airflow

105.1 m³/h

Bearing type

Rifle Bearing

Fan diameter

12 cm

Fan's mean time to failure (MTTF)

60000 h

Maximum air pressure

2.51 mmH2O

Maximum airflow

61.8 cfm

Noise level (high speed)

31.2 dB

Noise level (low speed)

12.4 dB

Pulse-width modulation (PWM) support

Yes

Quantity per pack

1 pc(s)

Rotational speed (max)

2000 RPM

Suitable location

Processor

Supported processor sockets

LGA 1851, LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5

Type

Air cooler

Power

Fan current

0.15 A

Fan power consumption

3.6 W

Fan voltage

12 V

Thermal Design Power (TDP)

190 W

Technical details

Compliance certificates

CE, RoHS, UKCA, UL, WEEE

Sustainability certificates

Triman

Warranty period

3 year(s)

Weight & dimensions

Cable length

0.12 m

Depth

71 mm

Fan dimensions (W x D x H)

120 x 120 x 25 mm

Fan thickness

2.5 cm

Heat pipes diameter

6 mm

Height

154 mm

Package depth

133 mm

Package height

210 mm

Package weight

900 g

Package width

163 mm

Radiator depth

4.6 cm

Radiator height

15.4 cm

Radiator width

12.4 cm

Weight

570 g

Width

124 mm

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4.3

Reviews: 6

5 stars

33%

4 stars

67%

3 stars

0%

2 stars

0%

1 star

0%

Alexei Markov

30/03/2025

4

The Pure Rock 3 LX effectively balances cooling performance and noise levels. It's the perfect solution for my home office setup, where silence is essential. It does its job well, but the fan could blend better with RGB setups.

Advantages

Balanced performance, quiet operation.

Disadvantages

Not RGB compatible.

Sarah Goldstein

05/02/2025

4

I am impressed with the performance of the be quiet! Pure Rock 3 LX. It's just as quiet as advertised, and my CPU temperatures have dropped significantly. The build quality is commendable, but installation could use clearer documentation.

Advantages

Low noise, great temperature control, quality build.

Disadvantages

Installation instructions could be better.

Oren Ben-Ari

17/06/2024

4

This air cooler does a great job cooling my CPU without breaking the bank. My only complaint is that it can be a little bit tricky to fit into an already cramped case. Overall, a fantastic product for the price.

Advantages

Affordable, good cooling, quiet.

Disadvantages

Can be difficult to install in tight spaces.

Yossi Levi

22/01/2024

5

As a gamer, I value performance above all else. The Pure Rock 3 LX has met my expectations with its outstanding cooling capacity and minimal noise levels during intense gaming sessions. It's a solid choice for any PC build.

Advantages

Great cooling for gaming, low noise levels.

Daniela Petrov

10/09/2023

4

I recently upgraded to the be quiet! Pure Rock 3 LX and noticed a significant improvement in temperatures compared to my old cooler. It’s truly silent, and the design is sleek. However, I wish it were a bit more compact for smaller cases.

Advantages

High performance, silent, sleek design.

Disadvantages

A bit large for small cases.

David Cohen

15/05/2023

5

The be quiet! Pure Rock 3 LX has transformed my PC cooling experience. It operates quietly while providing excellent cooling performance. The installation process was straightforward, and it fits snugly in my case. Highly recommended for anyone seeking an efficient air cooler.

Advantages

Quiet operation, excellent cooling, easy installation.

be quiet! Pure Rock 3 LX - Processor Air Cooler, 12cm, Black, 1pc(s)

Introducing the be quiet! Pure Rock 3 LX - Processor Air Cooler

Key Features

Specifications

Why Choose the be quiet! Pure Rock 3 LX?