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Black tower CPU cooler with 120 mm fan and magnetic mesh top cover

be quiet!

be quiet! DARK ROCK 5 BK035 CPU cooler

SKU CH-27TT-1YMRC MPN BK035

Cools CPUs up to 210 W TDP with a 120 mm PWM fan reaching 2100 RPM and 29.8 dBA

  • Fan size120 mm
  • Supported CPU socketsAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA
  • Bearing designFluid Dynamic bearing
  • TDP210 W
  • Rotational speed2,100 RPM
  • Airflow rate55 CFM
  • Cools CPUs up to 210 W TDP with six high-performance heat pipes
  • Runs at just 29.8 dBA maximum noise with Silent Wings 4 fan
  • Asymmetrical heatsink design clears tall RAM and VRM coolers
  • Fits Intel LGA 1700/1851 and AMD AM5/AM4 sockets out of the box
  • Ceramic-particle black coating and magnetic top cover improve heat transfer and aesthetics

Dark Rock 5 210 W air cooler

The Dark Rock 5 is a 120 mm tower cooler rated for 210 W TDP. Six copper heat pipes and a black ceramic-coated aluminium fin stack transfer heat to a Silent Wings 4 PWM fan. It fits Intel LGA 1700, 1851, 1200, 1150, 1151, 1155 and AMD AM4, AM5 sockets. The 161 mm height suits most mid-tower cases.

Pre-fitted bridge eases mounting

A pre-installed mounting bridge and captive screws let you secure the cooler without loose parts. The asymmetrical fin cut-outs clear tall RAM modules and VRM heatsinks on most boards. The only common snag is the 120 x 120 x 25 mm fan overhanging the first memory slot on some compact layouts, which a second optional fan would worsen.

29.8 dBA at 2100 RPM sustained

At full 2100 RPM the fan delivers 55 CFM and 2.73 mm H₂O static pressure while peaking at 29.8 dBA. The fluid-dynamic bearing and rubberised frame keep vibration low during long renders or compiles. Thermal mass of the 1013 g heatsink absorbs short spikes, so temperatures rise gradually rather than spiking under continuous load.

How it compares

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

Price $50.99
Pricier than about 90% 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 namebe quiet!
Model nameDARK ROCK 5
Part numberBK035
Product colorBlack
Product typeFan & Heatsinks
Performance
Rotational speed2,100 RPM
Airflow rate55 CFM
Static pressure2.73 mm H2O
Processor
TDP210 W
Power
Power input connector4-pin PWM
Size & build
Fan size120 mm
Bearing designFluid Dynamic bearing
Cooler materialAluminum
Product weight1013g
Shipping weight1.36 kg
Package size229 × 203 × 152 mm
Compatibility
Supported CPU socketsAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA 1151 / Intel LGA 1155 / Intel LGA 1200 / Intel LGA 1700 / Intel LGA 1851
CPU cooler height limit161 mm
In the box
In the boxThermal grease, Screwdriver, Mounting set for Intel and AMD.
Manual (EN, FR - other languages digitally available)
Environment & compliance
Operating noise29.8 dBA Max
More details
LED lightingNon-LED

Questions about this item

How do I confirm the cooler is performing correctly after installation?

Monitor CPU temperatures under load; the cooler is rated for 210W TDP with a maximum noise level of 29.8 dBA at 2100 RPM, so temperatures should stay within safe limits while the fan remains quiet.

What accessories are included and what must I purchase separately?

The box contains thermal grease, a screwdriver, and a complete mounting set for Intel LGA 1700/1851/1200/1150/1151/1155 and AMD AM4/AM5 sockets; no extra parts are required for standard installation.

Which version should I choose for my case and memory setup?

The single 120mm Silent Wings 4 model fits cases with 161mm CPU cooler clearance and its asymmetrical heatsink with cut-outs provides unlimited RAM height compatibility.

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