# Cooler Master Hyper 212 Halo Black CPU Air Cooler, 120 Halo² PWM Fan, Dual Loop ARGB, Aluminum Top Cover, 4 Copper Heat Pipes, 154mm Tall, AMD Ryzen AM5|AM4, Intel LGA 1851|1700|1200 Brackets

- Category: CPU Cooler
- Brand: Cooler Master
- Model: RR-S4KK-20PA-R1
- Part number: RR-S4KK-20PA-R1
- Price (US): $32.47
- Price last checked: 2026-08-06
- Rating: 4.6/5 from 22863 Amazon reviews
- Warranty: 2 years
- Product page: https://buildmypc.net/component-details/cpu-cooler/cooler-master-rr-s4kk-20pa-r1/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Cooler Master |
| Model | RR-S4KK-20PA-R1 |
| FAN RPM | 650 to 2050 RPM |
| Noise Level | 27 dB |
| Number of Fans | 1 |
| Water Cooled | No |
| Color | Black / Multicolor |

## Key Features

- Minimalistic Revamped: The refreshed jet-black aesthetic brings a renewed vibe while keeping its minimalistic essence.
- Cool for R7 | i7: Four heat pipes and a copper base ensure optimal cooling performance for AMD R7 and *Intel i7.
- MF120 Halo² Fan: Experience premium airflow with cooling with our optimized PWM blade for stability.
- Dynamic PWM Fan: A PWM 4-pin header allows adjustable fan speeds from 690 to 1,800 RPM, to balance noise and airflow.
- Dual-Loop ARGB Rings: Dual-loop design with larger LED rings by 50%, creating more vibrant lighting.
- Simplify Brackets: Redesigned brackets simplify installation on AM5 and LGA 1851|1700 platforms.
- Versatile Compatibility: 154mm tall design offers performance with wide chassis compatibility.

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