Antec K240 Kuhler H2O, all-in-one closed loop liquid CPU cooler, is uniquely engineered to protect your CPU’s performance, increase the life of your CPU and ensure that you can count on its performance for years to come.
The Antec K240 Kuhler H2O comes equipped with a 240mm radiator, two PWM RGB LED fans and a low profile CPU block design.
Socket Compatibility
- Intel: LGA 2066 / 2011-V3 / LGA2011 / LGA1366 / LGA1156 / 1155 / 1151 / 1150
- AMD: AM4 / AM3+ / AM3 / AM2+ / AM2 / FM2+ / FM2 / FM1
About the Antec K240 Kuhler H2O All-In-One Liquid CPU Cooler


Effective Damage Prevention
The Antec K240’s integration of the water pump and radiator prevents the CPU from being damaged by vibration, and it also improves the efficiency of thermal control.

Slim & Low-Profile CPU Block Design
The super-thin CPU block not only avoids incompatibility with special heat sinks but also protects the motherboard from deforming due to the weight of the CPU cooler.
- Only 31mm Thick
- Thermal Paste Pre-Applied
- 0.28mm Wall Thickness


PTFE-Coated Tubing
Provides Excellent Durability & High Temperature Resistance + Nylon-Braided Tube Sheath.
PTFE Tubing reduces liquid loss. It also resists corrosion and aging.

High-Airflow Fan
The PWM fan provides high airflow and stronger thermal control for the CPU.

Synchronous RGB Lighting Effects
RGB LED pump head and fan work in sync with the motherboard or RGB controller perfectly.