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Black aluminum tower cooler with 120 mm fan, four heat pipes, 159 mm tall

Cooler Master

Cooler Master RR-B10-212P-G1 120 mm CPU cooler 600-2000 RPM 13-32 dBA 159 mm height

SKU CH-4Q3N-Z78B2 MPN RR-B10-212P-G1

120 mm air cooler with four direct-contact heat pipes, 600–2000 RPM fan and 13–32 dBA noise range fits cases up to 159 mm tall

  • Fan size120 mm
  • Bearing designSleeve
  • Rotational speed600–2,000 RPM
  • Airflow rate21.2–76.8 CFM
  • Operating noise13–32 dBA
  • Power input connector4 Pin
  • Quiet operation from 13 dBA at low speed
  • High airflow up to 76.8 CFM for strong cooling
  • Four direct-contact heat pipes transfer heat efficiently
  • 159 mm height fits most standard cases
  • PWM 4-pin control enables automatic speed adjustment

120 mm sleeved air cooler

The Cooler Master RR-B10-212P-G1 is a 120 mm CPU air cooler with a black aluminum heatsink and four direct-contact heat pipes. A single 120 mm sleeve-bearing fan spins between 600 and 2000 RPM, delivering 21.2 to 76.8 CFM at 13 to 32 dBA. The unit stands 159 mm tall and weighs 1.40 lbs.

Builders needing quiet PWM control

This cooler suits builders who want PWM fan control across a wide speed range and compatibility with older Intel LGA 775, 1155, 1156, 1366 and AMD FM2, FM1, AM3+, AM3, AM2+, AM2 platforms. It is not for systems that require a height below 159 mm or a bearing type rated for longer continuous operation than sleeve.

159 mm maximum cooler height

The decisive specification is the 159 mm overall height, which determines whether the cooler clears your case side panel and memory slots. Verify your chassis clearance before purchase.

How it compares

Measured against everything we stock in CPU Coolers & Heatsink Fans, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 68% of the 1,559 comparable items (median $19.99).
Fan size 120 mm
Higher than about 80% of the 812 comparable items (median 80 mm).

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Specifications

Product
Brand nameCOOLER MASTER
Model nameRR-B10-212P-G1
Product colorBlack
Product typeFan & Heatsinks
Performance
Rotational speed600–2,000 RPM
Airflow rate21.2–76.8 CFM
Power
Power input connector4 Pin
Size & build
Fan size120 mm
Bearing designSleeve
Cooler materialAluminum
Fan mountingHorizontal
Heatsink dimensions116 × 51 × 159 mm
Product weight1.4 lb (0.64 kg)
Shipping weight0.94 kg
Package size231 × 157 × 91 mm
Compatibility
CPU cooler height limit159 mm
Environment & compliance
Operating noise13–32 dBA

Questions about this item

How do I install the Cooler Master RR-B10-212P-G1 on an LGA 1155 socket, and what step is often missed?

Use the universal mounting kit for Intel sockets including LGA 1155; the step often missed is securing the backplate firmly before placing the heatsink so the four direct-contact heat pipes sit flat on the CPU.

What maintenance will the 120 mm sleeve-bearing fan need later?

The sleeve bearing cannot be relubricated easily; plan to replace the 120 mm fan when noise rises above the 13–32 dBA range or RPM drops below 600.

At what noise level does the cooler hit its acoustic limit under sustained load?

At full 2000 RPM the fan reaches 32 dBA; that is the first noticeable limit during prolonged heavy use.

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