Cooler Master debuts minimalist Atmos II Stealth AIO

Cooler Master is expanding its AIO cooling lineup with the MasterLiquid Atmos II Stealth series, available in both 240mm and 360mm configurations. This new iteration strips away the flashy RGB lighting in favour of a clean, professional aesthetic that blends into modern minimalist builds. 

The Atmos II Stealth series (via Vortez) brings several technical upgrades over previous models, most notably an increase in radiator thickness to 29mm (from 27mm), providing extra surface area to improve heat dissipation. Cooling is handled by Mobius 120P fans, which use loop dynamic bearings to deliver high static pressure while maintaining low noise levels. Under the hood, the ultra-low-profile pump features a dual-chamber design that optimises water flow. The pump's housing is constructed from heat-resistant PPS and fibreglass for long-term durability.

A unique feature of the Atmos II Stealth is its modularity via the Flex Kit System. The pump top features magnetic, interchangeable covers that allow users to swap the default look for metallic plates or an active VRM fan module. This optional VRM fan provides multidirectional airflow, which Cooler Master's testing suggests can reduce VRM temperatures by up to 10.2°C. Additionally, the cooler includes offset mounting brackets for Intel's LGA 1851 platform to ensure the cold plate is aligned with the thermal hotspots of the latest Core Ultra processors.

The MasterLiquid Atmos II Stealth Series is built for simplified installation, coming with pre-installed fans and a universal quick-mount system. Each unit is bundled with CryoFuze thermal paste and a suite of cable-management accessories. While official global pricing has not yet been detailed, the series is expected to roll out to major retailers starting later this month.

KitGuru says: Do you think brands should launch more AIO coolers with minimalist aesthetics like the Atmos II Stealth series?

Become a Patron!