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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

240mm AIO Liquid Cooler with LCD Display

4.4
Rated 4.4 out of 5 stars
4.4 Stars (108 Reviews)
Color:Black

Your Prepay and Save Options

Choose the plan that works best for you.

Month-to-Month

Cancel and return anytime with no fees. This option provides maximum flexibility with no long-term obligations.

Prepaid Terms

Prepay for a multi-month term (3, 6, 12 months) and lock in a lower effective monthly rate.

When your term ends, you have simple options:

1

Month-to-Month: By default, your subscription automatically converts to the month to month rate requiring no action from you.

2

Prepay Again: Alternatively, you can choose to prepay for another 3, 6, or 12 month term.

3

End Subscription: Cancel and return with no fees.

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 108 reviews
80%would recommend these products
Total 5 star reviews: 76 Total 4 star reviews: 10 Total 3 star reviews: 11 Total 2 star reviews: 6 Total 1 star reviews: 5
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.
Write a Review (Opens in a new window)
108 reviews
  • B
    BrippyTrock
    Reviewing
    Kraken 240
    I recommend this product
    Product Standouts Value for Money, Performance, Ease of use
    Rated 5 out of 5 stars
    2 weeks ago
    Keeps Cool

    Using a 9850x3d and I got to say while heavily gaming my temps only reach 45c, while at idle I'm at 30c. On the other hand, I would like the see the cables out of sight a little more.

    Was this helpful?
  • K
    Kyle
    Verified Reviewer
    Reviewing
    Kraken 280
    I recommend this product
    Product Standouts Great Quality, Value for Money, Performance, Design, Ease of use
    Rated 5 out of 5 stars
    1 month ago
    Great Aio!

    I have had this cooler for the past 3 years and it has done a great job at keeping my I9-13900k cpu of a beast cool! It has never gone over 65 Celsius during heavy gaming loads. Thoroughly happy with this product and will buy another when this one gets too old!

    Was this helpful?
  • S
    Stephen
    Verified Reviewer
    Reviewing
    Kraken 360
    I do not recommend this product
    Rated 1 out of 5 stars
    2 months ago
    Very poor

    Purchased the NZXT Kraken 360 Liquid Cooling in May 2023. Now it seems to have an air block in the system according to my PC engineer. Not good for a product NZXT boast how good it is.

    Was this helpful?
  • E
    EE/CE
    Verified Reviewer
    Reviewing
    Kraken 120
    Rated 3 out of 5 stars
    3 months ago
    Cpu rebooting system due to theraml throttleing.

    About 3 years old, bought it for a 2700x and has worked fine until recently.

    I put my old 20+ year old Thermaltake True and the CPU is running cooler than it ever did with this AIO.

    I was going to use the True until I got a new AIO in the mail but now I decided if a 20+ YO Air cooler can beat this thing and is still working then why am I wasting money on a AIO that is only going to fail in a few years again?

    Oh and I had to replace the fan on it 2 years ago, I use a artic p12 silent which has been dead silent and awesome.

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  • J
    Jiri
    Verified Reviewer
    Reviewing
    Kraken 280
    I recommend this product
    Product Standouts Great Quality, Value for Money, Performance, Design
    Rated 5 out of 5 stars
    4 months ago
    GREAT AIO!

    My second NZXT AIO in last 6 years and working great with H7 Flow, thank you!

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