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Black tower CPU cooler with 120 mm ARGB fan, black aluminium top cover and four black heat pipes

Cooler Master

Cooler Master Hyper 212 Halo Black CPU Cooler RR-S4KK-20PA-R1

SKU CH-0ECZ-5EAQN MPN RR-S4KK-20PA-R1

Compact 154 mm air cooler with four black heat pipes, a 120 mm MF120 Halo² fan running 650–2050 RPM at 27 dB(A) and dual-loop ARGB lighting

  • ColorBlack
  • TypeFan & Heatsinks
  • Fan Size120mm
  • CPU Socket CompatibilityAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA
  • Bearing TypeRifle
  • RPM650 ~ 2050 RPM ± 10%

Model Hyper 212 Halo Black

  • Dual-loop ARGB lighting adds visual flair
  • 27 dB(A) operation keeps the system quiet
  • 14 m³/h airflow improves thermal headroom
  • 154 mm height fits most mainstream cases
  • Simplified brackets speed up installation on AM5 and LGA 1700

Compact 154mm height for broad chassis fit

The Cooler Master Hyper 212 Halo Black is an air cooler built around four jet-black copper heat pipes and a single 120mm MF120 Halo² fan. It targets builders who want quiet thermal headroom for mainstream processors on Intel LGA 1700, LGA 1851, LGA 1200 or AMD AM5 and AM4 platforms. The 154mm overall height keeps it clear of most side panels and memory modules.

Rifle-bearing fan holds steady airflow at 2050 RPM

Under sustained load the 120mm fan spins between 650 and 2050 RPM, moving up to 88.14 m³/h while the rifle bearing keeps acoustic output at 27 dB(A). The dual-loop ARGB ring runs independently of the PWM curve, so lighting stays consistent even when the fan ramps down during lighter workloads. Four direct-contact pipes spread heat across the aluminium fin stack without relying on a vapour chamber.

Verify 154mm clearance and a 4-pin PWM header

Before ordering, confirm your case allows at least 154mm of cooler height and that the motherboard provides a standard 4-pin CPU fan header for PWM control. The ARGB function needs a 3-pin 5V addressable header or the included controller for automatic spectrum mode. Builders needing liquid-cooling density or silent operation below 20 dB(A) should look elsewhere.

Highlights

  • Dual-loop ARGB lighting adds visual flair
  • 27 dB(A) operation keeps the system quiet
  • 14 m³/h airflow improves thermal headroom
  • 154 mm height fits most mainstream cases
  • Simplified brackets speed up installation on AM5 and LGA 1700

Specifications

BrandCOOLER MASTER
ModelHyper 212 Halo Black
Part NumberRR-S4KK-20PA-R1
ColorBlack
TypeFan & Heatsinks
Fan Size120mm
CPU Socket CompatibilityAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA 1151 / Intel LGA 1155 / Intel LGA 1156 / Intel LGA 1200 / Intel LGA 1700 / Intel LGA 1851
Bearing TypeRifle
RPM650 ~ 2050 RPM ± 10%
Air Flow88.14 m³/h (51.88 CFM)
Noise Level27 dB(A)
Power Connector4 Pin
Heatsink MaterialAluminum
Fan Mounting Types to HeatsinkVertical
Max CPU Cooler Height154 mm
Shipping weight0.84 kg
Package size191 × 140 × 109 mm

Other versions of this model

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Questions about this item

How loud is the MF120 Halo² fan when the CPU runs at full load all day?

The fan reaches 27 dB(A) at its 2050 RPM maximum, so sustained heavy workloads stay at a low, office-friendly noise level.

Does my motherboard need a specific header to run the ARGB lighting on this cooler?

The ARGB auto-detection works with a standard 3-pin 5 V ARGB header; if that header is absent the fan defaults to a built-in spectrum cycle.

Will the 154 mm height fit inside a mid-tower case that also holds an ATX motherboard with tall VRM heatsinks?

At 154 mm tall the cooler clears most mid-tower interiors, and the upgraded brackets keep it clear of VRM heatsinks on LGA 1700, LGA 1851 and AM5 boards.

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