Cooler Master 240 Atmos High Performance Close-Loop AIO Liquid Cooler, R9|i7 Dual Chamber Pump, Customize Cover, Sickleflow Edge PWM, aRGB Lighting, AMD Ryzen AM5|4, Intel LGA 1851|1700 Platform

the best sff aio for a reason. tubes are very soft and very easy to manage them. it fits to every 240mm aio compatible case easily. temps are extremely good for 7800x3d in ssupd meshroom d case . it's very powerful and very silent.... extremely recommended . Thanks CoolerMaster for this epic aio.

musa yusufoglu · 2026-02-16 · via amazon

This cooler works great. I'm coming from TWO EK CR240 coolers that developed grinding pumps within a month. Installing this, the pump is dead quiet, and using the same fans (Phanteks T30) and same thermal paste across all of them, this runs about 5c cooler than the EK coolers. It could be the large difference is due to the pumps, which seem to have been defective. Either way, this cooler is dead silent and cools well. You don't have to use all of the RGB nonsense it comes with and deal with a big nest of cables, either. If you just want to install the cooler without fan RGB it's just the PWM pump header and the fan header on the mobo. You can plug the pump head in to any 2nd gen RGB plug on the motherboard, too. It's a very clean install overall.

Chad · 2023-12-29 · via amazon

This was exactly what I was looking for - it fits perfectly in my Dan A4-H2O. The packaging was easy to work through, and durable enough that I'm holding on to it should I ever uninstall this AIO. I put some Noctua fans on it, and it cools my 7800x3D excellently. Installation was pretty straightforward, there weren't a crazy number of cables to manage, and the tubes are flexible enough without feeling too Pinner. The RGB effect is pretty great as well. I would definitely recommend this cooler.

Joe E. · 2025-08-30 · via amazon

My first order had terrible pump noise that was confirmed not to be working correctly by Cooler Master themselves. This is apparently a common problem for people with this AIO. My second one works amazing and is close to silent, and it performs better than an air cooler. The fans can run at lower RPMs and get similar temperatures to an air cooled build. For reference, I have this in a FormD T1. There is a slight pump whine just like any other AIO, most people run theirs at 70% pump speed, but there isn't a huge difference from 100% to 70% pump speed with my current one.

Kevin Cui · 2025-11-28 · via amazon

Dropped my CPU temps in my ITX build from around 80c under high load to around 70-72c. Installation wasn't too bad and for the price, it's awesome. Would reccomend, does it's job good.

Gabriel · 2025-11-15 · via amazon

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VALUE SCORE

Price

$9.99

Price

$20