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Specifications
  • Airflow Volume
    78.86 cubic feet per minute
    Cooling System
    Liquid
    Fan Size
    120 millimeters
    Fan Speed
    1800 revolutions per minute
    Noise Level
    33.9 decibels adjusted
    Number of Fans Included
    2
  • Key Specs
    • Airflow Volume: 78.86 cubic feet per minute
    • Cooling System: 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: 1800 revolutions per minute
    • Noise Level: 33.9 decibels adjusted
    • Number of Fans Included: 2
    • Lighting Type: None
    • Product Height: 123 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: 80 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 LGA 1700, Socket LGA 1200, Socket AM5 (LGA 1718), Socket AM4 (PGA 1331), Socket sTRX4/Socket SP3r3 (LGA 4094), Socket TR4/Socket SP3r2 (LGA 4094) (Type of pin configuration that connects a CPU to a computer’s motherboard.)
    • Radiator Size: 240 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-KN240-B1
    • Product Name: Kraken 240mm Radiator CPU Liquid Cooler (1 x 120mm F Fans) with 1.54" LCD Display
    • Color: Black
  • Cooling
    • Airflow Volume: 78.86 cubic feet per minute
    • Cooling Fan Type: CPU
    • Cooling System: 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: 1800 revolutions per minute
    • Noise Level: 33.9 decibels adjusted
    • Number of Fans Included: 2
    • 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: None
  • Power
    • Power Consumption: 2.4 watts
    • 12-Volt Rated: true
  • Dimensions
    • Product Height: 123 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: 80 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: 275 millimeters (The out of box length of the item. Length is measured as the longest dimension of the item.)
    • Product Weight: 4.1 ounces (The out of box weight of the item.)
  • Compatibility
    • Processor Socket: Socket LGA 1700, Socket LGA 1200, Socket AM5 (LGA 1718), Socket AM4 (PGA 1331), Socket sTRX4/Socket SP3r3 (LGA 4094), Socket TR4/Socket SP3r2 (LGA 4094) (Type of pin configuration that connects a CPU to a computer’s motherboard.)
    • Radiator Size: 240 millimeters (The overall size of the radiator based on the number of fans held within multiplied by the individual fan size.)
  • Warranty
    • Warranty - Parts: 6 years
    • Warranty - Labor: 6 years
  • Other
    • UPC: 810074842686

The Kraken delivers chillingly cool performance, an easy install, and a display screen for system specs or custom images.

  • Performance in real time: Proudly display custom images and system specs in real time. The 1.54" diameter LCD display screen provides a clean image.
  • Stay cool: Powerfully quiet F Series Static Pressure fans provide cooling with superior heat dissipation capability. The 7th gen Asetek pump ensures your Kraken stays cool and quiet at 2800 RPM.
  • Simple install: Setup is made simple with a single breakout cable that takes the guesswork out of the installation process. The liquid tubes are protected with reinforced nylon-braided sleeves for added durability and worry-free handling.
  • NXT CAM ready: Personalize screen content with custom images or performance info with user-friendly NZXT CAM software. Control fan and pump speeds and run at 0 RPM mode at low temperatures to eliminate fan noise.

Q: What type of bearing does the fan on this cooler use?

A: The fan on this cooler uses a hydraulic bearing.

Q: What is the diameter of the LCD display screen on this cooler?

A: The LCD display screen on this cooler is 1.54 inches in diameter.

Q: Can I use this cooler with a Socket LGA 1700 processor?

A: Yes, this cooler is compatible with Socket LGA 1700 processors.

Q: Does this cooler have customizable lighting?

A: Yes, the Kraken 240 cooler has customizable lighting.

Q: What is the maximum fan speed of this CPU cooler?

A: The maximum fan speed for this cooler is 1800 revolutions per minute.

Q: How much power does the Kraken 240 cooler use?

A: The Kraken 240 cooler uses 2.4 watts of power.

Q: Can i change the lcd display

A: Yes you can. Just download the software and you can put all kinds of stuff on the screen. Gifs, images, you name it!

Q: Can i mount thermaltak 120mm fans on the radiator?

A: Yes, should be able to use any 120mm case fans on the radiator

NZXT - Kraken 240mm Radiator CPU Liquid Cooler (1 x 120mm F Fans) with 1.54" LCD Display - Black

Model: RL-KN240-B1
SKU: 6541455
$109.99
Save $30
Comp. Value: $139.99
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Pros for NZXT - Kraken 240mm Radiator CPU Liquid Cooler (1 x 120mm F Fans) with 1.54" LCD Display - Black
Cooling, LCD Display, Ease of use, Noise Level, InstallationCooling, LCD Display, Noise Level, Ease of use, InstallationCooling, LCD Display, Ease of use, Installation, PerformanceCooling, Ease of use, Installation
Cons for NZXT - Kraken 240mm Radiator CPU Liquid Cooler (1 x 120mm F Fans) with 1.54" LCD Display - Black
PumpThere were no cons for this productScreen SizeThere were no cons for this product

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Reviews

Customers are saying

Customers are positive about the Kraken 240mm Radiator CPU Liquid Cooler's cooling performance, LCD display, ease of installation, quiet operation, price, and compatibility. They appreciate its outstanding cooling capabilities, informative and customizable LCD screen, simple installation process, quiet performance, affordability, and compatibility with various components. However, some customers have expressed concerns about the loud pump and outdated software. A few users experienced a noisy pump, while others found the NZXT CAM software to be in need of updates.

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

    Easy to set up

    Easy to set up, not too noisy. Thankfully My case had a window to take the bracket out on the motherboard without removing the motherboard from the case. Since I had an AMD CPU I had to keep my original plate for that cooler so if you don't have yours you might want to think of a different cooler. My temperatures dropped 5⁰ when before they were constantly reaching 90⁰, so for me that was worth it. Also it created a lot of space for my RAM since I had a big radiator tower in there before.

    Posted by EmileM

  • Rated 5 out of 5 stars

    Crazy cooler

    This is my first water cooler and man I gotta tell u this thing is soo cool. Just by the way it looks the way it sounds this thing is amazing. The software is super easy to use (keep in mind I have the brain of a actual potato) and where the pump is there is a little screen that you are able to customize like I was able to put pictures of me and my wife on there. If u don’t own one of you just looking to try it out I would 10/10 recommend you try this cooler out.

    Posted by Nickf

  • Rated 5 out of 5 stars

    Strongly recommend

    I really like this AIO. Cools my ryzen 5 cpu well, it's quiet, and the screen option is awesome. I'm able to monitor my temps just by glancing on my PC next to me instead of using software overlays.

    Posted by Wojtek

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