Cooler Master has introduced the new MasterLiquid Atmos II Stealth Series, expanding its all-in-one liquid cooling lineup with a strong focus on understated design and refined performance. Available in 240mm and 360mm radiator variants, the new models cater to builders who prefer a clean, minimalist aesthetic without sacrificing cooling efficiency.
The defining feature of the Atmos II Stealth Series is its “stealth” approach — completely omitting RGB lighting across both the fans and pump block. This design direction targets users seeking a more subdued, professional look, aligning with modern builds that prioritise simplicity and cohesion over flashy illumination.
Key Features
• Stealth Design: No RGB lighting on the fans or waterblock for a clean, distraction-free build
• 29mm Thick Radiator: Increased thickness over the previous 27mm design improves heat dissipation and overall cooling efficiency
• Mobius 120P Fans: Pressure-optimised fans with loop dynamic bearings provide quiet, high-performance airflow
• Ultra-low Profile Pump: Compact pump design enhances compatibility with a wide range of PC cases
• Dual Chamber Pump: Refined patented design improves water flow and targets CPU hotspots more effectively
• VRM Cooling Module: Optional VRM fan delivers multidirectional airflow, reducing temperatures by up to 10.2°C
• Flex Kit System: Magnetic interchangeable top covers allow for easy customisation, including metallic and VRM fan options
• Durable Construction: Pump housing built with PPS and fibreglass for enhanced durability and heat resistance
• Simplified Installation: Pre-installed fans and a universal quick-mount system streamline the setup process
Included CryoFuze Thermal Paste
Additional refinements include offset mounting brackets for LGA 1851 platforms, designed to better align with CPU hotspots and improve thermal transfer, alongside bundled CryoFuze thermal paste and cable management accessories.
The Cooler Master MasterLiquid Atmos II Stealth Series is listed on the official product page, with pricing and availability yet to be announced.
