The NZXT Kraken Core 240 RGB is an all-in-one liquid CPU cooler for PC builders upgrading from stock cooling or planning a gaming or everyday system. Its 240 mm radiator and included RGB fan assembly are designed to keep compatible Intel and AMD processors cool.

A single-frame fan assembly combines two fans in one unit, helping reduce screws and cables during installation. The PWM fans can be adjusted through your motherboard or BIOS, while the pump and fan lighting connect to a 5V ARGB header and use motherboard lighting software. The cooler connects directly to the motherboard, so it does not need an extra controller. A copper cold plate, pre-applied thermal paste and flexible sleeved tubing help make installation straightforward.

Key features

  • 240 mm all-in-one liquid cooling system with an aluminium radiator.
  • One F240 RGB Core fan assembly containing two fans in a single frame.
  • Fan speed can be adjusted using PWM control.
  • High static pressure fan design moves air through the radiator fins.
  • RGB lighting on the pump cap and fan connects to motherboard 5V ARGB.
  • Direct motherboard connections avoid the need for a separate controller.
  • Pre-applied thermal paste and included mounting hardware simplify setup.
  • 400 mm sleeved tubing provides flexibility when positioning the radiator.

Compatibility

Supports Intel LGA 1851, 1700, 1200 and 115X, plus AMD AM5 and AM4 sockets. Check that your case has room for a 277 x 120 x 27 mm radiator and that your motherboard has a 5V ARGB header for lighting. Good to know: 5V ARGB is different from a 12V RGB header, so check your motherboard manual before connecting the lighting cable.

In the box

  • NZXT Kraken Core 240 RGB
  • F240 RGB Core Fan
  • Installation Accessories

Specifications

Specification Detail
Product type 240 mm all-in-one liquid CPU cooler
Part number RL-KR24C-B1
Colour Black
Radiator dimensions (L x W x H) 277 x 120 x 27 mm
Pump motor speed 3,100 ± 310 RPM
Fan configuration 1 x F240 RGB Core fan; single-frame array (2 fans in one frame)
Fan speed 500 – 2,400 ± 250 RPM
Fan airflow 75.05 CFM
Fan noise level 31.9 dBA
Fan bearing Fluid Dynamic Bearing
Fan connectors 1 x 4-pin PWM / 1 x 5 V RGB
Supported sockets Intel LGA 1851, 1700, 1200/115X; AMD AM5, AM4
Cold plate material Copper
Radiator material Aluminium
Tubing length 400 mm
Warranty 5 years

With broad current Intel and AMD socket support, a compact single-frame fan layout and motherboard-controlled RGB, the Kraken Core 240 RGB is a practical cooling upgrade for a clean, custom PC build.

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