Cooler Master

Cooler Master RR-S4KK-25SN-R1 Hyper 212 Black CPU Cooler

4.7 (7452 reviews)

The Cooler Master Hyper 212 Black Edition delivers reliable CPU cooling with four copper heat pipes and a sleek all-black nickel-plated design.

$25.99*$29.98Save 13%
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*Price sourced from Amazon.com. Last updated:Jun 14, 2026.Price and availability are subject to change.

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Overview

The Cooler Master Hyper 212 Black Edition (RR-S4KK-25SN-R1) is the latest refinement of one of the most recognized CPU air coolers on the market. At its core are four direct-contact copper heat pipes paired with nickel-plated aluminum fins, all finished in a jet-black coating that gives the cooler a clean, cohesive look inside any build. The aluminum top cover adds a touch of premium design while also contributing to heat dissipation. The included SickleFlow 120 Edge fan features an optimized blade curve for improved airflow, delivering up to 42 CFM while keeping noise down to just 26 dB at maximum speed.

Installation has been simplified with redesigned mounting brackets that support AMD Ryzen AM5 and AM4 as well as Intel LGA 1851, 1700, and 1200 platforms without requiring complicated adapters or excessive hardware. The 4-pin PWM connector allows the motherboard to intelligently control fan speed between 690 and 2,500 RPM, ramping up only when thermal demand increases. At 152mm tall, the Hyper 212 Black Edition fits comfortably in most mid-tower and full-tower cases, making it a versatile choice for builders who want solid thermal performance without the bulk and cost of liquid cooling. Its low 2.4W power draw means negligible impact on your overall system power consumption.

Key Features

Cool for R7 | i7: Four heat pipes and a copper base ensure optimal cooling performance for AMD R7 and Intel i7.

Quiet Cooling Fan: SickleFlow 120 Edge with Dynamic PWM control (690–2,500 RPM), designed for low noise and peak cooling performance.

Simplify Brackets: Redesigned brackets simplify installation on AM5 and LGA 1851|1700 platforms.

Versatile Compatibility: 152mm tall design offers performance with wide chassis compatibility.

Easy Installation: Easy to install with included thermal paste for hassle-free setup and optimal cooling performance.

Specifications

Brand
Cooler Master
Model
RR-S4KK-25SN-R1
Socket Compatibility
AMD Ryzen AM5/AM4, Intel LGA 1851/1700/1200
Heat Pipes
4 Copper Heat Pipes
Fan
SickleFlow 120 Edge PWM
Fan Speed
690 – 2,500 RPM
Airflow
42 CFM
Noise Level
26 dB
Material
Aluminum, Copper (Nickel-Plated)
Power Connector
4-Pin PWM
Voltage
12V
Wattage
2.4W
Dimensions
4.84" L x 3.03" W x 6.25" H
Weight
1.54 lbs
Color
Black

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Pros & Cons

👍 Pros

  • Four direct-contact copper heat pipes with nickel plating provide strong heat dissipation
  • Very quiet operation at only 26 dB even at maximum fan speed
  • Redesigned simplified mounting brackets make installation straightforward on modern AMD and Intel platforms
  • Compact 152mm height offers broad case compatibility
  • All-black nickel-plated fin design looks premium and resists tarnishing

👎 Cons

  • 42 CFM airflow is modest compared to larger tower coolers or dual-fan setups
  • Single-fan configuration may limit cooling headroom for heavily overclocked processors
  • Tower cooler design can obstruct tall RAM modules in some motherboard layouts
  • Not suitable for high-TDP enthusiast processors that demand more aggressive cooling solutions

Frequently Asked Questions

It supports AMD Ryzen AM5 and AM4 sockets, as well as Intel LGA 1851, 1700, and 1200 platforms, covering a wide range of modern processors.
The Hyper 212 Black Edition stands 152mm (approximately 6.25 inches) tall. Check your case's CPU cooler clearance specification to confirm compatibility before purchasing.
At its lowest speed of 690 RPM, the cooler operates very quietly. At maximum speed of 2,500 RPM it reaches approximately 26 dB, which is still relatively quiet for an air cooler under load.
Cooler Master typically includes thermal compound with their coolers. The mounting hardware and brackets for supported platforms are included in the box.
Yes, the SickleFlow 120 Edge fan uses a 4-pin PWM header, allowing your motherboard to dynamically adjust fan speed between 690 and 2,500 RPM based on CPU temperature.