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NZXT - Kraken 120mm Radiator CPU Liquid Cooler (1 x 120mm Aer P Fan) with RGB Display - Black

Model: RL-KR120-B1
SKU: 6486421
$69.99
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Specifications
  • Airflow Volume
    73.11 cubic feet per minute
    Cooling System
    Liquid, Liquid
    Fan Size
    120 millimeters
    Fan Speed
    1500 revolutions per minute
    Noise Level
    36 decibels adjusted
    Number of Fans Included
    1
  • Key Specs
    • Airflow Volume: 73.11 cubic feet per minute
    • Cooling System: Liquid, Liquid (A computer's CPU generates heat while operating and requires a cooling system to keep internal components functioning properly. Air cooling uses fans to draw in cool air and exhaust hot air, while liquid cooling uses coolant-filled tubes and water blocks to regulate internal temperature more efficiently.)
    • Fan Size: 120 millimeters
    • Fan Speed: 1500 revolutions per minute
    • Noise Level: 36 decibels adjusted
    • Number of Fans Included: 1
    • Lighting Type: RGB
    • Product Height: 1.25 millimeters (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 4.7 millimeters (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Processor Socket: Socket H4 (LGA 1151), Socket AM4 (PGA 1331), Socket R (LGA 2011), Socket R4 (LGA 2066) (Type of pin configuration that connects a CPU to a computer’s motherboard.)
    • Radiator Size: 120 millimeters (The overall size of the radiator based on the number of fans held within multiplied by the individual fan size.)
  • General
    • Brand: NZXT
    • Model Number: RL-KR120-B1
    • Product Name: Kraken 120mm Radiator CPU Liquid Cooler (1 x 120mm Aer P Fan) with RGB Display
    • Color: Black
  • Cooling
    • Airflow Volume: 73.11 cubic feet per minute
    • Cooling Fan Type: CPU
    • Cooling System: Liquid, Liquid (A computer's CPU generates heat while operating and requires a cooling system to keep internal components functioning properly. Air cooling uses fans to draw in cool air and exhaust hot air, while liquid cooling uses coolant-filled tubes and water blocks to regulate internal temperature more efficiently.)
    • Fan Size: 120 millimeters
    • Fan Speed: 1500 revolutions per minute
    • Noise Level: 36 decibels adjusted
    • Number of Fans Included: 1
    • Fan Life Expectation: 60000 hours
    • Heatsink Material: Aluminum Fins
    • Bearing Type: Hydraulic bearing
    • Fan/Cooling System Connector: 4 pin PWM (The configuration of the connector as it connects a computer component to a fan or cooling system.)
  • Features
    • Lighting Type: RGB
    • Customizable Lighting: true
  • Power
    • Power Consumption: 3.84 watts
    • 12-Volt Rated: true
  • Dimensions
    • Product Height: 1.25 millimeters (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 4.7 millimeters (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Length: 1.94 millimeters (The out of box length of the item. Length is measured as the longest dimension of the item.)
    • Product Weight: 1.94 ounces (The out of box weight of the item.)
  • Compatibility
    • Processor Socket: Socket H4 (LGA 1151), Socket AM4 (PGA 1331), Socket R (LGA 2011), Socket R4 (LGA 2066) (Type of pin configuration that connects a CPU to a computer’s motherboard.)
    • Radiator Size: 120 millimeters (The overall size of the radiator based on the number of fans held within multiplied by the individual fan size.)
  • Warranty
    • Warranty - Parts: 3 years
    • Warranty - Labor: 3 years
  • Other
    • UPC: 815671019400

The Kraken 120 combines the look of an AIO cooling system with the function of a 120mm form factor set of fans, delivering coolant wherever you need it. Featuring an RGB cap and an individually addressable logo and ring RGB LEDs, the Kraken 120 is a phenomenal way to add quiet and effective liquid cooling to your build.

  • Light your way: Integrates with your existing motherboard header, upgrade to an NZXT RGB controller to add advanced RGB color and lighting modes, and daisy chain to the rest of your RGB products.
  • Incredible performance: An updated pump chamber delivers improved thermal performance, combined with the Aer P radiator for liquid-cooling perfection. It features a chamfered intake and fluid dynamic bearing that provides silent operation, improved durability, and powerful cooling performance.
  • Reinforced extended tubing: Fine nylon sleeves are added to strengthen the rubber tubing. As an added protective layer, it shields your Kraken cooler tubes from potential damage during handling.
  • Compatible socket and CPU: Intel Socket LGA 1151, 1150, 1155, 1156, 1366, 2011, 2011-3, 2066 / AMD Socket AM4, TR4(bracket not included)

Q: What kind of performance can I expect from this cooler?

A: The Kraken 120 combines an updated pump chamber with the Aer P radiator for improved thermal performance, silent operation, and powerful cooling.

Q: What type of bearing does the fan use?

A: The Kraken 120mm CPU cooler uses a hydraulic bearing.

Q: How much airflow can the fan produce?

A: The fan on this cooler has an airflow volume of 73.11 cubic feet per minute.

Q: Does this cooler have customizable lighting?

A: Yes, the Kraken 120 has customizable RGB lighting.

Q: What is the maximum fan speed?

A: The maximum fan speed is 1500 revolutions per minute.

Q: Will cool an I9-1400k?

A: We would recommend a kraken 240mm or larger for that cpu

Q: Will this work with i9 9900k

A: Hi Thomas, Thanks for reaching out. The compatibility would work fine. At stock speeds, it should be just fine. But it's a smaller cooler for an i9. Any overclocking might result in higher operating temperatures.

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Pros for NZXT - Kraken 120mm Radiator CPU Liquid Cooler (1 x 120mm Aer P Fan) with RGB Display - Black
Cooling Performance, Ease of use, Noise Level, PriceCooling Performance, InstallationThere were no pros for this productNoise Level, Ease of use, Price, Cooling, Overall Performance
Cons for NZXT - Kraken 120mm Radiator CPU Liquid Cooler (1 x 120mm Aer P Fan) with RGB Display - Black
Size, Installation, RGBThere were no cons for this productThere were no cons for this productInstallation, Size, Instructions

Specs

Reviews

Customers are saying

Customers are impressed with the Kraken 120mm CPU cooler's excellent cooling performance and ease of installation. Many found it easy to set up and significantly reduced CPU temperatures, while some noted that the cooler is quieter than alternatives. However, a few customers mentioned challenges with the size and RGB configuration, suggesting potential fitment issues in smaller builds and limitations in RGB customization.

This summary was generated by AI based on customer reviews.

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    The cooler that stole the show

    ⭐️⭐️⭐️⭐️⭐️ I can’t say enough about the NZXT Kraken 120mm Liquid Cooler — it’s one of those rare upgrades that instantly makes you wonder, “Why didn’t I do this sooner?” From the moment I opened the box, everything felt premium. The design is sleek, the parts are solid, and installation was way easier than I expected. Performance-wise? Absolute powerhouse. My CPU temps dropped dramatically, and the Aer P fan keeps everything running cool and quiet — no more worrying about heat spikes during long gaming sessions or heavy multitasking. It’s efficient, reliable, and clearly built with quality in mind. But what really sets this cooler apart is the RGB display. It’s not just an extra feature — it’s the centerpiece of my build. The customization options make my rig look like it belongs on a showcase floor, and friends who see it for the first time can’t stop asking about it. It’s that eye-catching. Best Buy made the experience even better. Fast shipping, smooth checkout, and I felt confident knowing I was getting a trusted product from a store I rely on for all my tech needs. Bottom line: this cooler doesn’t just keep my CPU in check — it makes my entire setup shine. If you want the perfect mix of style, silence, and serious cooling power, the NZXT Kraken 120 is the upgrade your PC deserves.

    Posted by DanielC

  • Rated 4 out of 5 stars

    A Viable, Long-term Alternative to Air Cooling?

    Overall, I would say that this component has worked well for me thus far. I have noticed a decrease in the temperatures that my CPU runs at as a result of using this liquid CPU cooler instead of the heatsink. I appreciate this very much as upgrading software and using an attached capture card was taxing the CPU on my new PC causing it to run hot. In the past, I have had some problems with traditional heatsinks: my old PC lasted for thirteen years and I am pretty sure the heatsink failing was what led to it’s demise. I guess time will tell whether or not the NZXT – Kraken 120 will allow my newer PC to achieve greater longevity. Prior to purchasing this component, I really had to educate myself on it as I was fairly naïve to how it worked. I had to learn the difference between it, air cooling, and open (or custom) loops in order to fully appreciate how this component would function in my rig. Luckily there are plenty of videos and websites out there that can be used as credible educational material. I would strongly advise anyone considering an upgrade such as this to do similar research unless they are already confident that they know what they are getting into. Something that I had to come to understand was that this is an “all-in-one” (AIO) cooler versus an open (or custom) cooling loop. That is, this AIO comes with a pump, radiator, and water block that are preassembled together prior to being installed. This is nice as, by contrast to an open cooling loop, this AIO is zero maintenance after installation and does not require coolant (or water) filling/topping off. However, given these features this AIO can’t be used to cool down other components of the PC (e.g, the graphics card) which is a feature that an open system supposedly is capable of. I will also admit that given the nature of the coolant I am concerned about it being a viable, long-term alternative to air cooling. This, again, will only be something that can be determined through the test of time, though (thanks to Intel, Corsair, and Asetek Inc. for some information here as all these thoughts are not original on my behalf). I should also indicate that I had this component professionally installed by Geek Squad. I highly recommend making use of s service such as that (or a sound alternative). It takes a lot of stress away from the situation by having it installed by courteous, knowledgeable professionals who can back-up their work in case anything goes wrong. My biggest complaint with this component thus far is that it requires an RGB controller that is sold separately to control the RGB lights. I was a little disappointed when I found this out as being able to monitor the temperature of my computer’s components has become a priority for me given some of the tasks that I am striving to have it be able to achieve efficiently. That being said, this was a very modestly priced AIO and when the cost of a separate RGB controller is factored in on top of it the total expense probably turns out to be competitive with the cost for a cooler that comes with an RGB controller included.

    Posted by Thanks

  • Rated 5 out of 5 stars

    Cooler Than Cool… But My Rig Deserves the Triple T

    ⭐️⭐️⭐️⭐️ The NZXT single-fan cooler? Let me just say, it kept my CPU chill as a cucumber on an Alaskan cruise—until my rig caught wind of its stylish Corsair triple-fan cousin. Yep, that’s right: I returned my sleek black single-fan beauty for a Corsair white triple cooler because, well, cables. I wanted my PC to look like a sci-fi spaceship, not an artist’s rendition of a spaghetti explosion! The NZXT kept things frosty and my games running smooth, but when I imagined my setup with that extra cooling power and simplified cabling? Shoutout to Best Buy for making my cooler swap dreams a reality. If you need a cooler that just works and don’t mind a few extra cable puzzles, this one’s got your back.

    Posted by MiGutierrez

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