New

360 DEGREES OF COOL​

MASTERLIQUID ATMOS II SERIES​

⬢ Dual style covers​

⬢ Flex-Kit for modular upgrades​

⬢ SickleFlow Edge ARGB fans​

⬢ Ultra-low profile pump design​

⬢ Quick and easy installation​

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MASTERLIQUID ​ATMOS II SERIES

Introducing Cooler Master’s all-new Atmos II Series CPU cooler, designed to elevate your cooling experience. The MasterLiquid Atmos II Series offers enhanced customization, enabling users to upgrade their Atmos II with Flex-Kit to best suit their needs. The low-profile pump design makes it ideal for fitting into compact cases. The Atmos II Series delivers exceptional cooling performance, quieter operation, and the flexibility to personalize your build. Make it yours with Atmos II Series—the perfect blend of performance, customization, and silence.​

1 x 360mm fans​
MASTERLIQUID ATMOS II​ 360
1 x 240mm fans​
MASTERLIQUID ATMOS II​ 240
DUAL COLORWAYS​ AND STYLE COVERS​

Two decorative covers are included, they are held by magnets, and this makes them easy to change and allows you to make your personal preference.​

FLEX-KIT:
MODULAR UPGRADES​

Supports multiple top cover kits for extra customization, including LCD, Pixel LED, and VRM Fan.


*Contents may vary by each SKU. Please refer to the specification table on the packaging for the included Flex-Kit configuration.

Cooling System
DUAL CHAMBER DESIGN
DUAL CHAMBER DESIGN

Patented design

Our latest patented dual chamber design has been refined for enhanced cooling synergy. The new design increases water pressure and optimizes water flow directly to CPU hot spot.

DUAL CHAMBER DESIGN

Improved Quality

Fully automated production and assembly of the pump with fully recorded production history.

Tough. Reliable. Built to Endure.

Engineered with PPS and fiberglass, the MasterLiquid Atmos II pump housing delivers industrial-grade strength, exceptional heat resistance, and unmatched durability—designed for builders who demand long-lasting, high-performance cooling. It also passes extreme testing at 70°C for 3,000 hours and 120 °C for 12 hours*, ensuring reliable performance under the harshest conditions.

*Tested by Cooler Master Lab using only the liquid cooling module. Results may vary by system and conditions.

PRE-INSTALLED SICKLEFLOW EDGE ARGB FAN

High RPM fan with low vibration ensure strong cooling with minimal noise, while the dual color options complement different system aesthetics.

ULTRA-LOW PROFILE PUMP DESIGN

The flat design allows installation in cases of different sizes while maintaining strong performance.

QUICK AND EASY INSTALLATION

A quick-mount kit ensures compatibility with mainstream processor sockets and the pre-installed fans simplify setup. ​

Offset Mounting Brackets for LGA 1851

Due to the varying CPU hotspots across different platforms, there are corresponding mounting bracket solutions tailored for each. We recommend you use theincluded offset mounting brackets for LGA 1851*, which preciselydissipate 4°C of heat from the center of the CPU.**

*Please check whether your motherboard is compatible with this offset bracket. **Tested by Cooler Master Lab.

Smart, Sustainable, and Simple Packaging

Featuring eco-friendly materials, a 30% reduction in total packaging size, and intuitive, easy-to-navigate contents.

INCLUDED CRYOFUZE

THERMAL PASTE

TUBE CLIPS INCLUDED
Tech specifications

Discover technical info about the product

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