Cooler Master MasterAir MA624 Air Cooler Review

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Cooler Master MasterAir MA624 Air Cooler Top View


On the bench today is the Cooler Master MasterAir MA624 Stealth (MAM-D6PS-314PK-R1). It is part of Cooler Master’s MasterAir series of coolers that represents the best offerings that they have. We’ll strap it to our air cooling test platform that is built around a Ryzen 7 2700X processor with a manufacturer-claimed TDP of 105W. This should provide a reasonable usage case that we are likely to see with some of today’s most demanding air-cooled CPU coolers.

Cooler Master MasterAir MA624 Stealth Overview

The Cooler Master MasterAir MA624 Stealth cooler is an air cooler that is designed to work on a wide variety of sockets, including Intel’s LGA115x/1200/1366/2011/2011-3/2066 and AMD’s AM2(+)/AM3(+)/AM4/FM1/FM2(+). LGA1700 support is marked with an asterisk as only the “new packaging design” includes the mounting kit, otherwise, you’ve got to order one up through the CM store.


Cooler Master MasterAir MA624 Stealth sports six heat pipes which provide full coverage of the nickel-plated copper base to allow for heat dissipation. The pipes extend up into an aluminum dual tower that is sandwiched with fans. The entire assembly is black, allowing it to properly call itself stealth.

Cooler Master emphasizes the use of the black aluminum cover as a way to show a premium finish on the unit. The Easy Mounting System shows just through the top, allowing you to mount the unit without removing fans or the need for a really large screwdriver.


Cooler Master included three fans with the unit. Two Sickleflow 140 and one Sickleflow 120 fans are included. Using the two 140mm fans is the default configuration and the 120mm fan is included if you need to perform gymnastics with your RAM fighting for the same space. This is a unique feature, and it is nice that Cooler Master has thought about tall memory installations.

The 140mm fans are rated for 1.8W of power, a noise level of 10 to 27 dB(A), rotational speed of 650-1400 RPM, a maximum of 67 CFM at 1.8W of power, and the MTTF is 160,000.

The 120mm fan supports a fan speed of 650 to 1400 RPM at a reported noise level of 8 to 27 dB(A). The stated airflow maximum is 62 CFM at 1.8W of power and the MTTF is 160,000. Lastly, these fans use a 4-pin PWM connector.

The Cooler Master MasterAir MA624 Stealth presents itself as a large, sleek, black cube that gives it a refined look when mounted within your system. There’s no RGB to be found on this – it’s just here to do its job.

Let’s move on now to our test setup and installation of the Cooler Master MasterAir MA624 Stealth.

David Schroth
David is a computer hardware enthusiast that has been tinkering with computer hardware for the past 25 years and writing reviews for more than ten years. He's the Founder and Editor in Chief of The FPS Review.

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