Liquid CPU Cooler Cooler Master MasterLiquid 240 Atmos II — 240mm radiator, VRM fan, RGB

Cooler Master MasterLiquid 240 Atmos II is a closed-loop liquid CPU cooler featuring a 240mm radiator, an integrated VRM fan and RGB lighting. Engineered to lower processor temperatures and improve voltage regulator module (VRM) cooling on compatible motherboards, the unit combines a dual-fan radiator array with a compact water block. The design fits PC cases that support 240mm radiators and offers configurable RGB illumination to match system aesthetics.

Advantages

The 240mm radiator provides increased heat dissipation compared with smaller AIO coolers while maintaining a compact footprint. The included VRM fan targets motherboard power delivery components to stabilize thermals under sustained CPU load. Addressable RGB lighting on the pump and fans offers customization without affecting thermal performance. The integrated pump and closed-loop design require minimal maintenance and simplify installation compared with custom liquid cooling systems.

Suitable for

• Gaming PCs and workstations that accept a 240mm radiator
• Systems requiring improved VRM cooling for overclocking or heavy multi-core loads
• Builds that need a balance of cooling performance and compact radiator size
• Users who want configurable RGB lighting integrated with cooling components

Key specifications

• Radiator size: 240 mm (dual-fan configuration)
• Cooling type: All-in-one liquid CPU cooler (closed-loop)
• Included fans: Two radiator fans plus dedicated VRM fan
• Lighting: Addressable RGB on pump and fans
• Compatibility: Supports mainstream CPU sockets on compatible motherboards and PC cases that accept 240mm radiators

How to use

Mount the 240mm radiator in a case location that supports dual 120mm fans, secure the pump/block onto the CPU following the provided bracket for your CPU socket, and install the VRM fan on the motherboard area where it can direct airflow to power delivery components. Connect pump and fan power to the appropriate headers on the motherboard or a fan controller, and attach RGB connectors to a compatible RGB header or controller. After installation, configure fan curves and RGB settings through the motherboard or Cooler Master software if available, then monitor temperatures to confirm proper operation.

Recommendations

Place the radiator where case airflow is optimal (intake or top exhaust depending on case layout) and ensure the VRM fan is positioned to blow air across motherboard power components. Use PWM control for pump and fans to balance noise and cooling performance, and verify compatibility with your case and CPU socket before installation.