Article number: BK009


Quiet and Effective Cooling

Pure Rock is be quiet!’s CPU cooler, which is particularly applicable to quiet multimedia and graphics systems. Among the features that give it such an excellent price-to-performance ratio are:


  • A high 150W TDP cooling efficiency
  • Design supports mounting from atop the mainboard
  • Four high-performance 6mm heat pipes with aluminum caps
  • A silence-optimized, nine blade, 120mm be quiet! fan
  • PWM variable speed operation to help balance cooling and quietness
  • Brushed aluminum finish
  • 3-year warranty

For famous be quiet! low noise operation (max. 26,8 dB(A)) at entry level pricing, Pure Rock is your CPU cooler choice.



With Pure Rock, be quiet! presents a CPU cooler series aimed at the Essential category of PC systems. Bringing be quiet!’s award-winning technology to quiet multimedia and graphics systems, and entry level computers of all types, be quiet! Pure Rock delivers an exceptional price-to-performance ratio.

Pure Rock’s compact design fits well into tight spaces. Put famous be quiet! technology into your PC today for low noise operation and maximum of cooling performance at entry level segment.

If you are seeking the best possible mix of performance and price in the Essential CPU cooler segment, your search is over. Pure Rock simply has to be your choice.

Excellent Cooling Efficiency

  • High cooling capacity for this category, at 150W TDP
  • Four 6mm heat pipes with aluminum caps carry heat to cooling fins for high performance


Convenient, Highly Compatible Compact Design

  • Compact design saves space, making cooler compatible with a vast array of equipment and possible installation configurations
  • Design supports mounting from atop the mainboard, greatly increasing convenience


Low-Noise Operation

  • Nine blade silence-optimized 120mm be quiet! PWM fan with high-quality sleeve bearing is optimized for quietness and supports the best balance of cooling performance and silent operation
  • Fan blades are airflow-optimized to reduce noise-generating turbulence
  • Even at 100% PWM function, noise is a scant 26.8dB(A)


Product Conception, Design and Quality Control in Germany

  • 3-year warranty
  • Aluminum finish on top cover and aluminum heat pipe caps
  • Quick support is available via our international hotline, Mondays to Fridays from 9:00am to 5:30pm (CET): +49 (0) 40-736 76 86 - 98
All models at a glance:


General data

Overall dimensions without mounting material (L x W x H), (mm) 87.5 x 121 x 155
Total weight (kg) 0.66
TDP (W) 150
Socket compatibility Intel: LGA 775 / 115x / 1366 / LGA2011(-3) Square ILM / 2066
AMD: AM2(+) / AM3 (+) / AM4 / FM1 / FM2 (+)
Fan model, number 1x silence-optimized be quiet! fan
Decoupled fan mounting -
Overall noise level (dB(A)) @ 50/75/100% (rpm) 19.1 / 22.1 / 26.8


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Heatsink specifications

Dimensions (L x W x H), (mm) 62.5 x 121 x 155
Number of fins 48
Fin material Aluminum
Base material Copper
CPU contact surface CNC machined
Heatpipe number / Diameter (mm) 4 / 6
Surface treatment -

Fan specifications

Fan dimensions (mm) 120 x 120 x 25
+SilentWings -
Speed @ 100% PWM (rpm) 1,500
Bearing technology Sleeve
Motor technology 4-pole fan motor
Rated voltage (V) 12
Input current (A) 0.12
Input power (W) 1.44
Connector 4-pin PWM
Cable length (mm) 220
Lifespan (h / 25°C) 80,000


Thermal grease (g) - (already applied)
Mounting set Intel & AMD
Y-Cable -
User manual languages EN, DE, FR, PL, ES, RU


Warranty (Years) 3
International hotline / free of charge ✓ / DE, FR

Logistics data, RRP

Article number BK009
EAN code 4260052183915
Dimensions, package (L x W x H), (mm) 180 x 130 x 180
Gross weight, package (kg) 0.78
Pieces per packaging unit 16
Dimensions, shipping box (L x W x H), (mm) 542 x 375 x 380
Gross weight, shipping box (kg) 16.70
RRP (€) 39.00
Model number -

Article number: BK009




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