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❄️ Cool your core, light your lore.
The Cooler Master CPU cooler combines a minimalist jet-black design with advanced cooling technology, featuring four heat pipes and a copper base optimized for AMD R7 and Intel i7 processors. Its dynamic PWM fan offers adjustable speeds between 690 and 1800 RPM for tailored noise and airflow control, while dual-loop ARGB rings provide 50% brighter lighting effects. Compatible with modern AM5 and LGA 1851|1700 sockets, this 154mm tall cooler fits a wide range of chassis, delivering both performance and style.

















| ASIN | B0BRBWL38D |
| Air Flow Capacity | 51.88 Cubic Feet Per Minute |
| Best Sellers Rank | #102 in Computer CPU Cooling Fans |
| Brand | Cooler Master |
| Brand Name | Cooler Master |
| Compatible Devices | Desktop |
| Cooling Method | Fan |
| Customer Reviews | 4.7 out of 5 stars 1,495 Reviews |
| Global Trade Identification Number | 00884102105005 |
| Included Components | cooler, fan |
| Item Dimensions L x W x H | 4.8"L x 2.8"W x 6"H |
| Item Weight | 0.69 Kilograms |
| Manufacturer | Cooler Master |
| Material Type | Aluminum |
| Maximum Rotational Speed | 2050 RPM |
| Model | RR-S4KK-20PA-R1 |
| Noise Level | 27 Decibels |
| Number of Items | 1 |
| Part Number | RR-S4KK-20PA-R1 |
| Power Connector Type | 4-Pin |
| Product Dimensions | 4.8"L x 2.8"W x 6"H |
| UPC | 884102105005 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
| Warranty Description | 2 Years |
| Wattage | 3.6 watts |
K**S
Great cooling performance and clean look
This cooler has been a solid upgrade. It keeps my CPU temperatures much lower compared to the stock cooler, even under load. The fan is quiet, and the ARGB lighting looks really clean without being over the top. Installation was straightforward with the included brackets, and everything felt sturdy once mounted. Overall, it’s a great balance of performance, noise level, and aesthetics for the price. Definitely recommend it if you’re looking for reliable air cooling.
P**Z
Perfect in every sense.
It took me 2 years to figure out the heatsink and fan that came with my PC was not good from day 1. This one performs smoothly and without the stuttering of the one replaced. It fit perfectly and even though it was a different style (perpendicular versus all on top) it was very easy to install. It was a nice plus that it came with a thermal paste tube which saves a few bucks there. And the lightning perfectly matches the box existing fans.
M**N
A great cpu cooler
Such an upgrade from a stock amd cooler, cpu was almost around 90°c when cpu was at 100% usage and now gets at maximum 75°c, visually it looks really clean, nice size and has great rgb lights. Fitting for a mostly cooler master pc case.
L**N
Skeptical to impressed.
Not going to lie, I was skeptical of this one. I swapped processors and put a new one in and needed a cooler quick. This was definitely on the lower cost side and I needed it fast. I installed it in 5 minutes, all hardware is provided for whatever type of board you have. I've never seen a fan mounted like this and thought it would look awful, it actually looks pretty fantastic, the airflow is great and it is extremely quiet. I am using this with a Risen 9 5800X and the processor is staying extremely cool under load, definitely a great pickup.
P**H
Cold
Worked great for a i5 250k plus ultra, kept cpu around 40C. I did add my own fans (asus tf 120mm)
S**D
Great for midrange and lower Intel cpu's not high end or overclocked.
Very well made. The construction is quality and the fiture is as advertised. The only issue I have is that the instructions are a bit lacking. For a novice builder it could be confusing. The included LGA1700 brackets fit both the 1700 and the 1200 sockets for Intel. The kit has AMD mounting brackets, but my build utilizes the 1700 socket. For the price, the performance is adequate for up to an Intel Core i5 - 13th gen and earlier, no cpu overclock. For a midrange gaming rig, like I am building, this cpu cooler is more than adequate. Good quality product from a reputable maker for a good price.
E**A
5 stars
I've had the cooler for two years and haven't had any problems. It adapts very quickly, has no issues with thermal paste, and is very nice-looking.
J**N
Great cooler with awesome RGB
I’ve always trusted Cooler Master for fans and this Hyper 212 Halo didn’t disappoint. The cooling performance is solid, and it’s super quiet even under load. The RGB lights are really vibrant and look amazing inside my case. Installation was easy, and I’ve never had any problems with this brand. Definitely a reliable choice if you want both performance and style.
Y**F
Very good
Helped with my temps
A**I
مبرد ممتاز
المبرد ممتاز معالجي R5 7600 سابقا مع مبرد الستوك الحرارة كانت وقت اللعب بين 90C-95C وحاليا مع المبرد الجديد الحراره وقت اللعب بين 70C-75C
M**A
Excelente disipador
Bajaron bastante las temperaturas de mi procesador, si se puede controlar el RGB ya sea que lo conectes directamente al puerto RGB de tu PC o si ya lo estás ocupando con splitter de RGB todo se soluciona, es muy silencioso
K**M
Excellent
Looks amazing really well build and the colours are deep and bright. Highly recommended
A**N
Keeps my CPU cool and looks awesome
Really happy with this cooler. It does a great job keeping my CPU temps low, and the RGB lighting adds a fun, clean look to my setup. Easy to install and runs quietly.
Trustpilot
1 week ago
4 days ago