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Cooler Master Masterliquid 360 Atmos Stealth specifications and in-depth review

Cooler Master Masterliquid 360 Atmos Stealth

Manufacturer: Cooler Master

The Cooler Master Masterliquid 360 Atmos Stealth is a 360 mm all-in-one liquid cooler designed for users who want capable thermal management without RGB lighting. It ships with three fans and comes with thermal paste included, making it straightforward to install across a broad range of current Intel and AMD platforms. The stealth-oriented design skips decorative lighting and display features entirely, keeping the aesthetic clean and understated.

Each of the three fans relies on fluid dynamic bearings and spins up to 2400 rpm, producing a maximum airflow of 70.7 CFM while keeping audible noise between 16 dB and 30 dB depending on load. The pump reaches up to 3400 rpm, and the radiator measures 394 mm in length and 119.2 mm in width with a 27.2 mm profile. The water block stands 53.15 mm tall with a footprint of 81 mm by 84.9 mm. Compatible sockets include LGA 1851, LGA 1700, LGA 1200, AM5, and AM4 among others, and the unit carries a five-year warranty at a total weight of 1450 g.

Pros
  • Compatible with a broad range of Intel and AMD sockets, including LGA 1851, LGA 1700, AM5, and AM4, covering both current and older platforms
  • Thermal paste is included in the box, removing the need for a separate purchase before installation
  • Fans use fluid dynamic bearings, which are known for smoother operation and longer lifespan compared to sleeve bearings
  • The noise range of 16 to 30 dB keeps the cooler relatively quiet during low-load operation
  • Backed by a 5-year warranty, offering long-term coverage
  • No RGB lighting or display keeps the aesthetic minimal and reduces potential points of failure
Cons
  • The total weight of 1450 g may put stress on motherboard mounting points, particularly in transport or non-standard orientations
  • At full load the fan speed reaches 2400 rpm and noise climbs to 30 dB, which may be noticeable in quiet environments
  • The 360 mm radiator requires a case with adequate space and a dedicated 360 mm mounting position, limiting compatibility with smaller builds
Who is this for?

This cooler suits builders who prioritize a clean, understated aesthetic without RGB lighting or a display, making it a practical choice for workstation builds or any setup where visual simplicity matters. The wide socket support spanning LGA 1851, LGA 1700, AM5, and AM4 makes it a reliable option for users upgrading platforms without wanting to replace their cooler. Those who value long-term reliability will also appreciate the fluid dynamic fan bearings and the 5-year warranty backing the unit.

Who is this NOT for?

Users working with compact or small-form-factor cases that lack a 360 mm radiator mounting position will find this cooler incompatible with their build. The total weight of 1450 g may also be a concern for anyone frequently transporting their system, as the mass can stress the motherboard mount over time. Additionally, users who specifically want RGB lighting or an integrated pump-head display for a visually expressive build will need to look elsewhere, as neither feature is present on this unit.

Cooling:

Cooling type AIO liquid
Max fan RPM 2400 rpm
Max pump RPM 3400 rpm
Max airflow 70.7 CFM
Number of fans 3

The Masterliquid 360 Atmos Stealth uses an AIO liquid cooling setup with a trio of fans that reach a maximum speed of 2400 rpm, collectively delivering up to 70.7 CFM of airflow. The pump operates at up to 3400 rpm, helping to circulate coolant efficiently through the loop.

Dimensions:

Heatsink/water block height 53.15 mm
Heatsink/water block width 81 mm
Heatsink/water block depth 84.9 mm
Radiator size 360 mm
Radiator height 27.2 mm
Radiator length 394 mm
Radiator width 119.2 mm

The water block measures 53.15 mm in height, 81 mm in width, and 84.9 mm in depth, giving it a compact footprint at the CPU mount point. The 360 mm radiator spans 394 mm in length and 119.2 mm in width, with a 27.2 mm thickness that should fit comfortably in most cases with standard 360 mm radiator support.

General info:

CPU socket LGA 1700, LGA 1200, LGA 1151, LGA 1150, LGA 1155, AM4, AM5, LGA 1851
Audible noise (min) 16 dB
Audible noise (max) 30 dB
weight 1450 g
warranty period 5 years

This cooler is compatible with a wide range of sockets, covering LGA 1851, LGA 1700, LGA 1200, LGA 1155, LGA 1151, LGA 1150, AM5, and AM4, making it suitable for both current and previous-generation Intel and AMD platforms. Audible noise ranges from 16 dB at its quietest to 30 dB under full load, and the unit weighs 1450 g in total. It comes backed by a 5-year warranty.

Features:

Fan bearings Fluid dynamic bearings
has RGB lighting ✕
Thermal paste Included
Has a display ✕

The fans use fluid dynamic bearings, and thermal paste is included in the box, so no separate purchase is needed before installation. The cooler does not feature RGB lighting or an integrated display, keeping the overall design straightforward and free of decorative elements.

Final Verdict

The Cooler Master Masterliquid 360 Atmos Stealth is a no-frills 360 mm AIO cooler that delivers on the fundamentals: broad platform compatibility, a quiet low-load noise floor, fluid dynamic fan bearings, and a 5-year warranty that reflects confidence in its long-term reliability. It forgoes RGB lighting and a display entirely, which narrows its appeal to builders who want function over aesthetics, but makes it a focused and coherent product for that audience. The size and weight do demand a spacious case and thoughtful mounting, so it is not without constraints. For users building a clean, visually minimal system on a current Intel or AMD platform who want a cooler they can install and largely forget about, the Masterliquid 360 Atmos Stealth presents a well-rounded and dependable option.