Best 240mm AIO Coolers to Buy in 2023

Suggested Article: Best White Liquid CPU Coolers to Buy (Budget, Mid-Range & High-End)

Best 240mm AIO Coolers to Buy

1. Deepcool LS520

Deepcool has a long history of manufacturing awesome CPU coolers, and the Deepcool LS520 is no exception. The Deepcool LS520 features some amazing cooling capabilities. The included Deepcool fans can run at a whopping 2250 RPM, more than any other fans in this line-up. Their high speed and efficient design, results in their maximum airflow coming in at 85.85 CFM. That makes this one of the most efficient 240mm AIOs on the market. What’s more, it does all of that whilst having the maximum noise of the fans sit at only 32.9dBA.

The radiator’s thickness of only 27mm means there shouldn’t be any clearance issues in all but the most compact of PC cases. Thanks to the highly efficient fan design, the radiator doesn’t have to be too thick to still maintain the high levels of heat dissipation this AIO boasts.

The CPU block features a minimalist design that follows in a very similar pattern to most Deepcool coolers. The pump face can even be customised, while the full addressable RGB on the block and fans gives consumers even more ways to customise. The Deepcool LS520 even offers compatibility with larger processors such as AMD‘s Threadripper, providing plenty of versatility in terms of sockets. While all of these features are already impressive, to top it off, the LS520 is available at a rather affordable price. Thus, it’s one of the best value 240mm AIO coolers available for the cooling potential it offers.

Buy the Deepcool LS520 on:

2. Cooler Master MasterLiquid ML240R RGB

The Cooler Master MasterLiquid ML240R RGB is a great budget AIO from another very reputable CPU cooling manufacturer. Like many other Cooler Master products, this AIO puts function over form, providing a more basic look, whilst still offering impressive specs. The CPU block features a simplistic look with ARGB that will suit most PC builds. It’s far from the most exciting part of this product however, as that honour goes to the included radiator and fans.

The included Cooler Master fans can reach a maximum rated speed of 2000 RPM. With airflow being rated at 66.7 CFM, the MasterLiquid ML240R RGB provides a lot of cooling potential, at only 21dBA at its peak. Combined with a capable 27mm radiator, the MasterLiquid ML240R RGB comes together as a very affordable 240mm AIO cooler that still features enough cooling for even more high-end CPUs.

Buy the Cooler Master MasterLiquid ML240R RGB on:

3. MSI MAG CoreLiquid 240R V2

The MSI MAG CoreLiquid 240R V2 is a very interesting offering from MSI. Whilst many component manufacturers have been branching out recently into more markets, such as cooling, there are few that have such an interesting repertoire as MSI. One thing that consumers will notice straight away, is that the pump has been moved from the CPU block to the radiator, increasing its performance and lifespan. This does increase the thickness to some degree, but seeing as the radiator sits as 27mm overall, this won’t be a deal-breaker for most consumers.

The pump-less CPU block does also have another interesting feature. The blockhead attached on top can be rotated, meaning it can always be the right-side-up, no matter which way the AIO cooler is mounted. This CPU block also has plenty of versatility when it comes to mounting, as MSI have included support for AMD’s sockets prior to AM4. The fans themselves are also impressive. These MSI fans feature a maximum RPM of 2000. In total, MSI rates their airflow at a very impressive 78.73 CFM. While the maximum noise rating does see a small increase, up to 34.3dBA, it’s still manageable.

The MSI MAG CoreLiquid 240R V2 does a lot right, while still coming in at a more than reasonable price. The combination of great cooling potential and other very interesting features make this a very strong contender from MSI.

Buy the MSI MAG CoreLiquid 240R V2 on:

4. NZXT Kraken X53 RGB

NZXT is a favourite amongst PC builders due to their signature ultra-minimalist style. The NZXT Kraken X53 RGB includes one of the thickest radiators in this roundup, at 30mm. This will help to keep temperatures under control, while still being small enough that it will not cause clearance issues.

The thickness of the radiator will help to negate the slower fans that NZXT chose for this AIO. At a maximum speed of 1500 RPM, they are far from the fastest fans on an AIO. However, they are still adequate at keeping the CPU cool. At 33dBA max, they aren’t the quietest either, however replacement fans can always be bought by consumers who wish to stick with the NZXT CPU block and radiator that make up this AIO cooler.

NZXT’s trademark aesthetic, made up of a minimalist and bold design, is very much still present in the Kraken X53 RGB. That makes it especially appealing to consumers building an all-NZXT PC. It’s also available both in black and white, making it a great fit for NZXT-themed PCs in both of the most popular colours.

Buy the NZXT Kraken X53 RGB on:

5. Razer Hanbo Chroma

Razer has entered the cooling market with their own AIO cooler, the Razer Hanbo Chroma. Alongside their own in-house fans, this AIO features the expected Razer style, along with the expected high price. Razer however does try its best to justify the price though, with fast 2200 RPM Razer Kunai fans, with a maximum airflow rating of 65.5 CFM. Combined with a thick 30mm radiator, this will provide great cooling to any CPU that sits under the stunning yet minimalist CPU block.

The high RPM also comes at a cost, and with the maximum noise output rated at 35dBA, it’s one of the loudest AIO solutions in this roundup. With great compatibility on both Intel and AMD platforms, and an aesthetic that will fit most builds, it’s a great, if rather expensive, centrepiece to any PC build. For Razer’s first cooler, it’s a fantastic first attempt that will appeal to fans of all-Razer gaming setups.

Buy the Razer Hanbo Chroma on:

6. Corsair H100i iCUE Elite Capellix/LCD

Corsair produces some of the best known AIO coolers on the market right now. The Corsair iCUE Elite CAPELLIX, and the nearly identical LCD model, are some of their strongest contenders in terms of 240mm AIOs. The two models share much in common, such as the overall look, the same 27mm radiator, and the same CPU socket support. However, the two variants do use different fans. The Corsair ML RGB fans used in the CAPELLIX are extremely fast for a 240mm AIO, with a maximum speed of 2400 RPM. This does certainly increase the maximum noise, at 37dBA, but the overall airflow sees a very large increase, up to a whopping 75 CFM.

The LCD variant uses the Corsair ML Elite fans, which run at a maximum RPM of just 2000 RPM. This does lower the maximum airflow, but also the maximum noise. The largest difference comes in the form of an LCD screen on the top of the CPU block on the Corsair iCUE Elite LCD. This customisable screen can be used to display almost anything, be it temperature or fan speed read-outs, custom messages and more. This feature does greatly increase the price of the AIO, it’s a very unique and great-looking CPU block that will provide an incredible central point for any PC.

Hardware Considerations

240mm AIOs are a fantastic choice, as they can provide solid airflow, and disperse the heat that your CPU outputs very efficiently. This gives consumers a multitude of options when it comes to AIOs, as the majority of 240mm coolers will be able to handle most CPUs.

Consumers will want to be aware of additional power connectors or headers that might need to be used. The majority of AIOs that feature some form of RGB may also come with a fan/RGB controller. These generally require SATA power, and a USB 2.0 header in order to control the lighting and power the device. Although this won’t be a requirement for all coolers, it is worth checking out what additional cables are needed to power your fans and radiator.

Most of these AIOs include mounting hardware for the latest sockets from Intel and AMD, alongside strong support for legacy sockets. However, there are some options that may require the purchase of additional mounting brackets for certain sockets. A full list of compatible sockets for each model can be found in the comparison table we’ve created below: