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The NZXT Kraken 240 is a black liquid CPU cooler with two large fans and a circular pump head featuring an LCD screen displaying 32°C, designed for excellent cooling performance.
The NZXT Kraken 240 is a black liquid CPU cooler with a dual-fan radiator, flexible braided tubing, and a round pump unit, delivering outstanding cooling performance.
The NZXT Kraken 240 features a circular LCD screen showing 32° liquid temperature with a blue and purple progress bar, highlighting cooling performance and integrating seamlessly with NZXT CAM for real-time monitoring.
A close-up of the NZXT Kraken 240 shows its circular component with a copper plate, six screws, black plastic housing, and two side tubes—engineered to boost cooling performance.
A black NZXT desktop case with a transparent side panel showcases internal components, including the Kraken 240 liquid CPU cooler with an LCD displaying 32°C, alongside the graphics card, cables, and motherboard for excellent cooling performance.
A black NZXT computer case with a transparent side panel showcases internal components, including cooling fans, the NZXT Kraken 240 liquid cooler with an LCD screen, and a graphics card for enhanced cooling.

Kraken 240

4.4
Rated 4.4 out of 5 stars
4.4 Stars (102 Reviews)

240mm AIO Liquid Cooler with LCD Display

Color:Black

Overview

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

  • Pump features an embedded 1.54” square LCD screen to display real-time system info or custom images
  • Screen supports the display of custom images, animated GIFs, and CAM system info with adjustable orientation
  • Powerful Asetek pump provides optimal cooling and up to 2,800 RPM whisper-quiet operation
  • Includes high-performance PWM fans with fluid dynamic bearings for optimal cooling
  • Includes F140P/F120P Static Pressure fans
  • Single breakout cable simplifies installation
  • Rubber tubing is reinforced with nylon-braided sleeves to prevent leaks
  • Control custom screen content, pump speed, and zero-noise fan curves with NZXT CAM
Close-up of a computer’s liquid cooling system with a circular NZXT display showing “32°C Liquid” and colored dial, surrounded by cables, computer components, and part of the NZXT case.

LCD Display

1.54" square LCD display with 240x240 resolution, 30 Hz refresh rate, and high brightness.
Two black cylindrical liquid cooling components for a computer are shown; one displays temperature readings for GPU (34°C) and CPU (31°C) on a round digital screen, and the other shows a copper contact plate.

High-Performance Pump

The powerful Asetek pump circulates coolant efficiently and quietly.

A black dual-fan computer liquid cooling system with digital display on the pump; arrows indicate cool air entering and warm air exiting through the radiator.

Powerful Cooling

Static Pressure Fans with fluid dynamic bearings provide powerful cooling with minimal noise.
A close-up view of the interior of a desktop computer case, featuring a liquid cooling system with a digital display showing 32°C, three vertical fans, and neatly managed cables.

Installation Made Easy

  • A single breakout cable from pump to motherboard streamlines installation.
  • Includes compatible mounting brackets for Intel (LGA 1700/1200/115X/1851) and AMD processors (AM4, AM5).
  • Pre-applied NZXT High-Performance Thermal Paste.
  • Extended rubber tubing with durable nylon-braided sleeves for worry-free handling.
Tech Specs
Material
Aluminum and plastic
Display Orientation
Software adjustable Default, +90, +180, and -90 Degrees
Display Panel Active Area
1.54" (39.1mm)
Display Resolution
240 x 240 px
Display Brightness
300 cd/m²
Display Panel Type
Transmissive TFT, 262K color
Dimensions
Diameter: 74.7mm H: 55.97mm
Material
Block: Copper, Housing: Plastic
Motor Speed
800 – 2,800 ± 300RPM
Power
12V DC, 0.3A
Dimensions
123 x 275 x 30mm
Material
Aluminum
Length
400mm
Material
Ultra-low Evaporation Rubber with Nylon Braided Sleeve
Model
F120P Static Pressure Fan
Quantity
2
Dimension
120 x 120 x 26mm
Speed
500-1,800 ± 180 RPM
Air Flow
21.67 - 78.02 CFM
Air Pressure
0.75 - 2.7mm-H2O
Noise
17.9 - 30.6dBA
Bearing
Fluid Dynamic Bearing
Power Consumption
12V DC, 0.23A, 2.76W
Connector
4-pin PWM
Life
60,000 hours / 6 Years
Intel Socket
LGA 1851/1700 & 1200/115X
Intel
Core i9 / Core i7 / Core i5 / Core i3 / Pentium / Celeron
AMD Socket
AM5, AM4, sTRX4*, TR4* (*Threadripper bracket not included)
AMD
Ryzen 9 / Ryzen 7 / Ryzen 5 / Ryzen 3 / Threadripper
Warranty
6 Years
Model Number (Black)
RL-KN240-B1
UPC (Black)
810074842686
EAN (Black)
5056547202600
4.4
Rated 4.4 out of 5 stars
Based on 102 reviews
80%would recommend these products
Total 5 star reviews: 73 Total 4 star reviews: 9 Total 3 star reviews: 10 Total 2 star reviews: 6 Total 1 star reviews: 4
AI Reviews Summary
Customers say this cooling system runs quietly and keeps their computers cool during operation. Many reviews mention easy installation and setup, though some note the abundance of cables. The customizable display screen receives praise, though several users point out size limitations and interface constraints. While most find it performs well for cooling, some report reliability issues with fans and pump speeds after reboots. Common feedback includes appreciation for the visual aesthetics and RGB lighting options, though opinions vary on the lighting consistency.
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102 reviews
  • A
    abdullah
    Reviewing
    Kraken 240 Black
    I recommend this product
    Product Standouts Ease of use, Great Quality
    Rated 4 out of 5 stars
    1 month ago
    I love the Kraken 240

    My kraken 240 is amazing in both cooling and looks. The only disapointing part is the size of the lcd, but otherwise it is amazing.

    Product QualityRated 5.0 on a scale of 1 to 5
    Value for MoneyRated 5.0 on a scale of 1 to 5
    Was this helpful?
  • KB
    Kevin B.
    Reviewing
    Kraken 240 Black
    Product Standouts Design
    Rated 3 out of 5 stars
    2 months ago
    Snaped nut on the CPU housing...Grrr

    Hello i bought from Amazon for my new Rig...

    When installing the CPU cooler, the marked 3 Nit broke. I did not even use too much pressure.

    I have managed to still work with only 3 nut, but I would like to know where I could get a replacement.

    Regards

    Kevin

    Product QualityRated 3.0 on a scale of 1 to 5
    Value for MoneyRated 3.0 on a scale of 1 to 5
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    N Profile picture for NZXT
    NZXT
    2 months ago

    Hi Kevin,

    We’re sorry to hear about the issue with your CPU cooler. We’d like to provide you with a replacement and have sent a message to your verified email regarding this request. Please check your inbox and coordinate with us so we can get this resolved as quickly as possible.

    Thank you for your patience, and we look forward to helping you get back to building your rig!

  • G
    Giovanni
    Verified Reviewer
    Reviewing
    Kraken 120 Black
    Product Standouts Performance
    Rated 3 out of 5 stars
    3 months ago
    4 Jahre In Benutzung

    Nach 4 Jahren hat die Kühlleistung nachgelassen.

    Ich musste die Flüssigkeit erneuern und die Kupfer Lamellen reinigen. Trotz dieser Problematik bin ich mit der Kühlleistung in meinem Gebrauch zufrieden.

    Product QualityRated 3.0 on a scale of 1 to 5
    Value for MoneyRated 3.0 on a scale of 1 to 5
    Was this helpful?
  • J
    Javier
    Verified Reviewer
    Reviewing
    Kraken 120 Black
    I do not recommend this product
    Rated 1 out of 5 stars
    4 months ago
    La bomba dejó de funcionar justo a los 3 años

    La bomba ha dejado de funcionar a los 3 años y pocos meses, la garantía es de 3 meses. Componente caro que va a la basura, anteriormente he tenido otras AIO de otras marcas que han funcionado durante más de 6 años sin problemas. No volveré a comprar una AIO de NZXT

    Product QualityRated 1.0 on a scale of 1 to 5
    Value for MoneyRated 1.0 on a scale of 1 to 5
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  • DP
    Don P.
    Verified Buyer
    Reviewing
    Kraken 280 RGB White
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Kraken 280 RGB

    Does the job

    Was this helpful?
  • RH
    Ralph H.
    Verified Buyer
    Reviewing
    Kraken 240 Black
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Works well

    Easy to install, super quiet, and keeps my PC cool.

    Was this helpful?
  • T
    Tihim
    Flag of Bangladesh
    Reviewing
    Kraken 240 RGB
    Rated 3 out of 5 stars
    6 months ago
    Fan rgb looks off

    I bought Karen 240mm aio and I'm really disappointed that it has different fan. Cause I also bought h9 elite case. The fans on the aio don't look good and the colours are bad compared to the case fans and it's really sad to see two different types of fans and they don't even have same rgb colours. The aio fans are shallow and case fans are deeper.

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  • S
    Santiago
    Verified Buyer
    Reviewing
    Kraken 240 RGB
    I recommend this product
    Rated 5 out of 5 stars
    8 months ago
    5 Stars

    Very pretty cooler, lots of functionality and love the LCD display alongside the lights! Love this thing!

    Was this helpful?
  • S
    Santiago
    Reviewing
    Kraken 240 RGB White
    I recommend this product
    Rated 5 out of 5 stars
    8 months ago
    5 Stars

    Very pretty cooler, lots of functionality and love the LCD display alongside the lights! Love this thing!

    Was this helpful?
  • ES
    Evens S.
    Flag of United States
    Verified Buyer
    Reviewing
    Kraken 280 RGB
    I recommend this product
    Rated 4 out of 5 stars
    8 months ago
    My issue is not the

    My issue is not the graphics card, but rather that my computer wouldn't turn on when I received it. After calling technical support and attempting multiple troubleshooting steps, they ultimately told me the issue couldn't be fixed remotely and promised to send additional instructions which never arrived. I ended up disassembling the computer myself and discovered the problem: the AIO wasn't seated properly and the power cables on the top of the motherboard weren't fully connected. ​​​​​​​​​​​​​​​​

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