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

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.

Had to reconfigure my PC's CPU cooling solution,and this product worked beautifully. The only downside was that the included Intel mounting did not take into account that Asus motherboards (at least mine) has the CPU cooling studs hard-mounted, meaning I could not alter the built-in cooling mounts for those in this kit. Luckily for me, the included AMD style bolt heads worked with my Asus motherboard's existing Intel style studs, and allowed me to jury-rig this item to work as intended. I have the Asus z790 gaming WiFi motherboard

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.

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.

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.

Paid 85$ on sale and it’s been stellar over the past year and a half.

Great water cooling, keeps my cpu in the 40-45c range when idle compared to the other one I got from another manufacturer. I did have some issues with it trying to keep my cpu cool while I was using ray tracing on max, it wouldn't keep the heat down over time using ray tracing AMD and actually shut down my computer. I don't know if that is because I have a smaller radiator than the cpu wants or what. Design is great and I love hex thermal paste template. Light Design was great.

I switch to the atmos from kraken due to the krakens horrible pump whine. The atmos has barely any noise from the pump. Setup was easy and everything was organized well. Excellent aio overall and fits well in the LIAN li a3. Just wish the software was more usable (useless for the 240 version) and more options to control by liquid temp. I swapped the fan with my a12s cause they are quieter and I don’t want rgb.

Este es uno de los pocos AIO que son compatibles con el gabinete Lian Li Dan A4 H2O ya que tiene que tene menos de 55mm que es el máximo que soporta. Tanto el radiador como los 2 ventiladores de 120 mm cuentan con ARGB. Éste AIO tiene la posibilidad de conectar tanto los ventiladores como la bomba directamente a la tarjeta madre o usar el hub qué viene incluido.