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Be Quiet! Pure Rock 3 LX Air Cooler

BK040 | be quiet!
$57
ETA: 06/06/25 This item is expected to arrive into our warehouse around 06/06/25.
Buy now, pay later!
The Be Quiet! Pure Rock 3 LX Air Cooler is the perfect choice for users seeking a compact, efficient, and quiet cooling solution. Designed for optimal thermal performance with a 150W TDP, this cooler features a slim 92mm fan and four high-performance heat pipes that deliver excellent cooling without sacrificing space. The fan’s low noise operation ensures a quiet computing experience, even during extended workloads. Ideal for smaller cases or systems with limited space, the Pure Rock 3 LX provides reliable cooling for your CPU while maintaining a whisper-quiet environment, making it the ideal solution for budget-conscious gamers and PC builders alike.

Features


Pure Rock 3 LX Black

Compact Performance for Everyone

Pure Rock 3 LX rocks your system with very high performance in a compact design and a specially designed Light Wings LX 120mm PWM fan.

Pure Rock 3 is ready for modern flagship CPUs like Intel's Core i9 or AMD's Ryzen 9 series.

  • Very high cooling capacity for modern CPUs
  • Light Wings LX 120mm PWM ARGB fan with funnel shaped air outlet for equally high performance and stunning visuals
  • 4 black high-performance 6mm heat pipes with HDT technology
  • Achieves only 31.2dB(A) at maximum fan speed
  • High RAM and VRM cooler compatibility thanks to a compact design
  • Preinstalled cooler mounting bridge for a fast and easy installation
  • Elegant looks in an all-black design
  • 3-year manufacturer’s warranty

Be Quiet! Pure Rock 3 LX Air Cooler Black Feature 1

Keep it Cool

Very High Cooling Performance

Pure Rock 3 LX is aimed at consumer PCs. With 190 W TDP it offers an excellent cooling capacity for gaming, multimedia and graphics systems, as well as mainstream or entry level computers of all types. The performance is further increased by funnel-shaped air outlets on the Light Wings LX 120mm PWM fans, which increases airflow over the fins. In addition, the fan blades are optimised for maximum airflow, making this fan the ideal match for Pure Rock 3 LX.

Be Quiet! Pure Rock 3 LX Air Cooler Black Feature 2

Impressive Lighting

Lots of Illumination Possibilities

16 LEDs are located inside the hub of the impeller of the Light Wings LX 120mm PWM and shine outwards onto the frosted fan blades. This creates an unmistakable look and enables you to express your creativity.

Be Quiet! Pure Rock 3 LX Air Cooler Black Feature 3

High-Performance Heat Pipes

Ensuring Perfect Heat Transfer

Pure Rock 3 LX is equipped with 4 black 6mm heat pipes, matching the colour of the heat sink. The heat pipes are key to the cooler’s great cooling performance, because they transport the heat to optimum locations on the cooling fins. They do so with minimal bends and high bending radius, to maintain the performance of each heat pipe as good as possible.

Be Quiet! Pure Rock 3 LX Air Cooler Black Feature 4

Multiplatform

Second to None Compatibility

The Pure Rock 3 LX’ slim design increases RAM and VRM cooler compatibility significantly and enables limitless memory height. Thanks to its compact construction Pure Rock 3 LX is the perfect choice for PC cases that have limited space. Notwithstanding, it allows full configuration of RAM banks.

Be Quiet! Pure Rock 3 LX Air Cooler Black Feature 5

Super Easy Installation

No Tutorial Needed

Installation is easier than ever with the Pure Rock 3 LX. Thanks to its convenient, preinstalled mounting bridge plus screws and a firm yet gentle fixing method, cooler attachment is a breeze. Users of an AM5 CPU by AMD can benefit from an offset mounting to centre the heat pipes above the hot spots of their CPU.

Design Upgrade

Makes Your System Look Sharp

Who says that neat looking products must be expensive? Pure Rock 3 LX comes in an unmistakable all-black design which perfectly complements the lighting effects its fan offers. Every little detail is carefully arranged, making Pure Rock 3 LX a design gem in its class.

Specifications


General Data

Model Number BK040
Model Pure Rock 3 LX
TDP (W) 190
Colour Black
Overall Dimensions without Mounting Material (L x W x H), (mm) 71 x 124 x 154
Total Weight (kg) 0.57
Socket Compatibility Intel 1851 / 1700 / 1200 / 1150 / 1151 / 1155
Socket Compatibility AMD AM5 / AM4
Overall Noise Level (dB(A)) @ 50/75/100% (rpm) 12.4 / 24.4 / 31.2
Number of Fans 1

Heatsink

Dimensions (L x W x H), (mm) 46 x 124 x 154
Fin Material Aluminium
Surface Treatment Electrophoresis
Base Material Aluminium / Copper
CPU Contact Surface Heat pipe direct touch
Heatpipe Number / Diameter (mm) 4 / 6

Fan

Fan Model Light Wings LX 120 mm PWM
Fan Dimensions (mm) 120 x 25 x 120
Speed @ 100% PWM (rpm) 2000
Airflow at 100% PWM / 12V (CFM / m3/h) 61.8 / 105.1
Air Pressure at 100% PWM / 12V (mm H2O) 2.51
Bearing Technology Rifle
Motor Technology 4-pole fan motor
Rated Voltage (V) 12
Input Current (A) 0.15
Safety Current (A) 0.30
Input Power (W) 5.4
Connector 4-pin PWM
Lighting Connector Yes
Cable Length (mm) 120
Lifespan (h / 25°C) 60,000

Accessories

Thermal Grease (Type) Applied
Mounting Set Intel & AMD
User Manual Languages CN, DE, EN, ES, FR, JP, PL, RU, TW, UA

Safety Certification

Approvals CE, UKCA, UL

Environmental Directives

RoHS Yes
WEEE Yes
Triman Yes

Service

Warranty (Years) 3
International Hotline / Free of Charge Yes / DE, FR, US
Backed by a 3 year Be Quiet! warranty.

Customer reviews

Customer questions