Best 120mm AIO Liquid Cooler

AIO cooler are known to offer the best cooling solution for CPU even under load. As such, if you’re looking to build or upgrade your small form factor system, here are the best 120mm AIO CPU Coolers worth considering.

A CPU typically generates heat while it’s working and can quickly overheat under heavy load, leading to unstable performance or even getting damaged. To maintain your CPU operating within the safe temperature levels you need to install a capable CPU cooler.

This means choosing a good AIO cooler as it is specially designed to provide the best cooling solution even when you’re working with a powerful processor. However, not all AIO coolers will be best for your type of build since they come in different sizes, so you’ll have to pick one that supports your PC size.

In this article, we’re going to review some of the best 120mm AIOs out there that you can choose from for your HTPC or other small form factor builds. A great 120mm AIO cooler will nicely fit into your small form factor build and provide adequate cooling capacity with reduced noise output.

Our list includes AIO coolers with better cooling capacity than most of the mainstream air coolers you can find out there. Some of them even can be used with some high-end processors on stock speeds and can help you achieve moderate overclocks with your CPU.

They also come with varying pump sizes and radiator thickness, which can impact the performance or even bring about compatibility issues. So, to help you find the perfect option for your PC size and unique needs, here are the best 120mm AIO CPU coolers that you should consider.

Best 120mm AIO Liquid Cooler


best 120mm aio liquid cooler

The Corsair Hydro Series H60 is a fully furnished liquid cooler that comes with a LED-lit pump head and offers quiet cooling with its efficient pump and cold plate for your convenience.

This Corsair H60 comes with PWM fans that produce a fair amount of static pressure and maximum airflow. With airflow of 57.2CFM, static pressure of 2.08mm and a noise level of 28.3dba, the fan is skillfully designed to escalate airflow and to reduce noise.

When idle, the fan is quiet although it becomes a bit noisy when running at a high speed during high loads. Moreover, it’s mostly quiet, which makes this liquid cooler an excellent silent performer.

The fan comes with a slim and low profile 120mm radiator measuring 120mm by 27mm. The radiator is made of aluminum material along with thermally optimized copper baseplate designed to come into direct contact with the IHS for enhanced heat transfer.

As aforementioned, the AIO is fitted with a sleek water block and white LED-lit pump head designed to bring out an incredible radiance your entire CPU.

When it comes to performance, it has been tried and tested against one of the best performing air cooler, and it does quite well with an unbelievably close performance to that of Noctua NH-D15. It is pretty easy to install this CPU cooler and offers a free mounting bracket for handy and quick installation. Besides that, it is compatible with widely held Intel and AMD sockets including AM4, LGA 2066, and LG 1151.

Overall, the CORSAIR HYDRO SERIES H60 cooler is a great compact AIO ideal for small cases and builds that offers both efficiency and aesthetics under one roof. Its LED-lit pump head, quiet cooling, and slim radiator make it the top charting cooler outperforming all other 120mm AIOs.

2. NZXT Kraken M22 CPU Liquid Cooler

120mm aio

Looking forward to building a good-looking rig with a high-standard cooler that’s pretty easy to install? You may have to include the NZXT M22 on your shopping list. Specially designed for a compact gaming build, this M22 gives a superb cooling potential in a small cooling package.

NZXT Kraken M22 all-in-one cooler is top-of-the-line cooler that comes with a radiator, fans and a pump that have been modified to high levels of perfection. It is carefully designed to deliver high cooling levels while keeping the noise levels to a bare minimum.

This eye-catching 120mm cooler is equipped with a fancy RGB LED lighting on the water block with an infinity mirror style. This adds more astounding colors and incredible lighting to the cooler and offers you a fully automatic lighting experience. 

It comes with a 32mm Aluminum radiator and a high static pressure Aer P120 fan designed for improved cooling, silent operation and ground-breaking performance. For this reason you can easily run Core i5 and i7 as well as Ryzen 5 and 7 at stock speed on this M22. With a maximum speed of 2000 RPM, the fan noise level is between 21 to 38 dBA, but can be quite loud at full load. And the tubes are sleeved to offer more protection against any damage and cuts.

When it comes to installation, it is straightforward with this M22 series which has adopted the usual NZXT all-in-one approach that includes four standoffs and a back plate on the motherboard where the water is fixed. The best thing is that even a novice can install it with ease, and it is designed to work perfectly with Intel and AMD CPU sockets but not compatible with TR4.

In case the default blue lighting doesn’t interest you anymore, you can use the CAM software as your close buddy, which is free-to-download, quick to navigate and relatively easy to use. Although the software only works with Microsoft Windows 10 OS, you can also use it to control and monitor RGB lighting among other aspects of this compact AIO.

3. EVGA CLC 120mm

120mm liquid cooler

EVGA CLC 120mm AIO is a self-contained cooler ideal for overclocking with no custom tubing, maintenance and filing required. You just have to plug and play while providing airflow of 58.87 CFM and a low noise level of 20 dBA. It is fitted with an intuitive wiring system, which makes the cooler look sleek and elegant without many messy cabling.

The cooler comes with a slim 120mm radiator and a 120mm fan that constantly rotates at 1800RPM, and both help dissipate the heat thus keeping your CPU as cool as possible. The fan is not PWM but can be swapped and customized, and it has a sleeve bearing that supplies a great amount of static pressure and airflow. Also, it is a loud operator.

It comes with a pretty slim 120mm radiator having a width of 28mm and a 120mm fan that spins at a constant speed of 1800mm. This variable controlled fan comes with curved casing that helps generate streamlined airflow. Also, it is fitted with Nano bearings that ensures the fans remain incredibly silent even at top speeds and it is furnished with a copper base to facilitate maximum heat transfer. When it comes to the cooler’s compatibility, it supports nearly all modern AMD and Intel sockets so you shouldn’t have any issues.


Another superb 120mm AIO from Corsair is the H60 Single cooler model that delivers outstanding cooling performance with its highly-optimized fan.

What makes this 120 AIO cooler stand out from the rest is its PWM-enabled Corsair SP Series fan that can rotate to speeds of up to 1700RPM and dynamically adjusts the speeds to ensure maximum cooling performance.

The cooler’s 120mm aluminum radiator has a slim design that ensures perfect fit while providing ample surface area for maximum heat transfer, keeping your CPU cool throughout. Additionally, the block is designed with an optimized base plate to promote better thermal conductivity.

The AIO’s pump is designed to offer maximum liquid displacement while operating with minimal noise levels, thanks to its powerful operation and optimized design. The pump also is fitted with an LED head, which tremendously improves the cooler’s aesthetics.

Another thing that you may like about this cooler is that it comes equipped with a mounting bracket kit that makes installing it onto your motherboard incredibly easy. Not forgetting its compatible with all modern LGA 2066, 1151, and AM4 CPU sockets.

5. Thermaltake Water 3.0 120mm AIO CPU Cooler

Uniquely designed for enthusiasts who want a simple, high-performance AIO cooler with low-maintenance, then the Thermaltake Water 3.0 Performer C is their best option.

To begin with, this 120mm all-in-one cooler stands out from the pack is its high-performance waterblock design that come integrated with Thermaltake’s new water block technology and a copper-plated base plate for efficient heat transfer.

The cooler’s pump has a low-profile design that enables for maximum coolant circulation, keeping the block’s copper plate as cool as possible for optimum CPU cooling. The tubing is made to ensure low evaporation of the coolant, so you’ll not have to refill it.

The 120mm radiator made of aluminum provides a large enough surface area for enhanced heat conductivity. It also comes with a powerful 120mm PWM-enabled fan that ensures maximum cooling of the radiator. The fans is designed with a Low Noise Cable that helps cut down noise levels by nearly half for a more quiet operation.

What’s more is that this AIO supports the latest AM4 and LGA 1151 CPU sockets and comes with a three-year warranty that guarantees you the best quality.

Overall, with all its features combined this cooler can certainly keep your CPU’s temperatures down throughout your many hours of work.

6. Asus ROG Strix LC

The Asus ROG Strix LC is an advanced AIO CPU Cooler that comes armed with a striking design, plenty of fantastic features, and great cooling capacity.

This cooler boasts a cutting-edge pump design with ROG’s iconic logo with RGB lighting at the head. With Aura sync support, you can add other RGB-enabled devices for a burst of colors. You can as well customize the RGB lighting effects to match your build.

The PWM pump features a new design for the cooling-plate that comprises micro-channels that minimizes thermal resistance, promoting better and faster heat dissipation. The cooler’s 120mm fan is optimized to generate better airflow of about 81 CFM and high air pressure for superior cooling performance with reduced noise levels.

You may also like that this cooler is compatible with a vast range of AMD and Intel CPU sockets, so you’ll not have issues mounting it onto your modern motherboard platform. For the installation, this AIO cooler is designed with a mounting bracket to make the process of mounting it quite straightforward and easy.

With such great features plus a five-year warranty, this stylish AIO has all it takes to best cool your CPU and extend its lifespan.

7. Cooler Master MasterLiquid ML120L

Cooler Masterliquid ML120L is another amazing AIO CPU cooler designed to provide maximum cooling of the CPU while maintaining an incredibly quiet operation.

To start with, this AIO cooler comes armed with plenty of innovative technology and rubber pads that absorb sound produced, ensuring extremely quiet operation. It has a hybrid design that comprises a combination of helicopter blade and jet engine that generate high-static pressure with streamlined airflow.

The tubing is reinforced with double FEP material that’s not only highly durable but also pretty elastic and flexible. The 240mm radiator offers a large surface area with low thermal resistance for maximum thermal conductivity.

It has a dual-chamber pump design that delivers improved performance in displacing greater coolant amounts for efficient cooling. The 120mm fan comes designed with smart sensors that ensure cables don’t entangle.

It also includes a wired controller and splitter that allow you to easily customize the RGB lighting effects to your liking.

Overall, if you’re looking for a great 120mm AIO that will keep your CPU temperatures down while maintaining the noise levels to a minimum when working overnight, then the Cooler Masterliquid ML120L is your best option.

As you’ve seen from our review, there are great high-performance 120mm AIO coolers that you can install into your small form factor build for the best CPU cooling experience.

All of the 120mm AIO CPU Coolers on our list are designed to nicely manage most of the latest processors at stock speeds while remaining incredibly quiet throughout. Some of them even come with unique designs and features such as RGB lighting that adds a touch of style and color to your compact system.

They also vary greatly in terms of prices, so you can rest assured to find one high-performance AIO cooler even if you’re on a constrained budget.