January 18, 2022

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9 Best AIO Coolers Reviews in 2021

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Whether you are building a new PC or already have one, you must know that keeping your CPU properly cooled is highly important. If your computer’s CPU is not cooled properly, it can overheat resulting in thermal throttling which can affect its performance. Therefore, using something like the best AIO coolers present down below can be a great option for proper cooling thanks to these features offered by them:

  • Radiator Size: You should first check the radiator size of your AIO cooler since a larger radiator will generally result in better cooling performance. This is due to the reason that larger 360 mm or 280 mm AIO coolers will perform better than smaller 240 mm or 120 mm radiators for properly cooling your CPU.
  • Fan Speed: Apart from having a large radiator, your AIO cooler will also need high-performance fans for proper cooling. To ensure the same, you can check the fan speed of your AIO cooler since a higher fan speed range of 800 RPM to 2500 RPM will generally offer better performance than a range of 500 RPM to 1800 RPM.
  • RGB Lighting: While it doesn’t affect the cooling performance, having RGB lighting in your AIO cooler can be great for design and customization options. Even though most AIO coolers only offer RGB lighting in the pump unit, requiring you to get RGB fans separately, some AIO coolers also include RGB lightning in their fans.

While these features are quite important, there is still much more to keep in mind while going with an AIO cooler. Hence, all the best AIO coolers stated here have all their major factors and aspects given in proper detail along with an extensive Buying Guide for the best AIO coolers which will help you pick the best AIO cooler by the end of this guide.

Best AIO Coolers 2022

9 Best AIO Coolers Reviews

1. NZXT Kraken CPU Liquid Cooler

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NZXT is a highly popular brand of CPU cooling products and computer cases that are known to offer pretty great performance in general including its AIO cooler options.

The NZXT Kraken X53 AIO cooler is one of the best performing options out there, especially considering its noise levels. Starting with the radiator, this AIO cooler comes with a 240 mm radiator which is quite decent for most. When combined with its 500 to 2000 RPM fans, you can expect pretty decent performance despite its low noise levels.

While you do not get any RGB fans even such a premium price tag, its pump unit is one of the best-looking ones in terms of lighting. You will be glad to know that this AIO cooler also supports most of the common Intel and AMD CPU sockets for proper compatibility as well. Since NZXT is quite a premium and a reputable brand of AIO coolers, you also get a 6-year long warranty with it making it perfect for long-term usage.

Best Features:

  • Rated radiator size of 240 mm
  • Offers a fan speed of 500 to 2000 RPM
  • Compatible with both Intel and AMD CPU sockets
  • Comes with 6 years warranty

Pros:

  • Superb cooling performance with low noise levels
  • Great looking pump unit with unique RGB lighting
  • A long warranty period for great longevity

Cons:

  • Misses out on RGB fans even at a high price tag

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2. Cooler Master CPU Cooler

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Cooler Master is yet another renowned brand name for those who have ever built a custom computer. Even if this is your first time building one, you can rely on the quality and assurance of Cooler Master.

Coming in 2nd place, we have the  Cooler Master MasterLiquid ML240L. This is also a great option for those who are looking for a high-performance AIO cooler within an affordable range. It comes with a 3rd generation dual-chamber pump for much better efficiency and increased performance.

The Cooler Master MasterLiquid ML240L has a SickleFlow exterior design which enables better airflow for an increased heat transfer rate. And if you are interested in looks and design, you will be glad to know that it offers full RGB lighting which you can customize according to your taste. You also won’t have to worry about any sort of leakage problems as the Cooler Master MasterLiquid ML240L is equipped with an industrial-grade EPDM material seal which is pretty tough to beat.

Best Features:

  • Rated radiator size of 120 mm
  • Offers a fan speed of 650 to 2000 RPM
  • Compatible with both Intel and AMD CPU sockets
  • Comes with 2 years warranty

Pros:

  • RGB lighting for better customization
  • 3rd gen dual-chamber pump
  • SickleFlow exterior design

Cons:

  • Comparatively shorter warranty period

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3. Corsair iCUE H100i RGB Pro XT

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You might have heard about Corsair before as it is also a leading brand in CPU coolers and other computer components. If you want a premium AIO cooler, Corsair might be the right brand.

In the 3rd place, we have one of the most premium choices available in the market for an AIO cooler. The following option is designed by Corsair and offers a maximum fan speed of up to 2400 RPM. However, if you want a silent performance, you can tune down the fan speed as low as 400 RPM. While the radiator of Corsair iCUE H100i is pretty low profile, the cooler itself features fully customizable RGB lighting.

The noise levels of the Corsair iCUE H100i on the other hand are pretty low and offer up to 37 dB of noise output with the lowest settings. Even within such a small noise level, it manages to deliver up to 75 cubic feet per minute airflow which is pretty good. There are 2 120 mm fans available on the radiator which are ML series magnetic levitation. Thus, you will be getting an efficient performance with the Corsair iCUE H100i.

Best Features:

  • Rated radiator size of 240 mm
  • Offers a fan speed of 400 to 2400 RPM
  • 16 fully customizable RGB LEDs
  • Comes with 5 years warranty

Pros:

  • The warranty period is quite long
  • Works with Corsair’s iCUE software
  • Low noise levels

Cons:

  • Requires a CW-8960091 spare part for Intel LGA1700 compatibility

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4. ARCTIC Liquid Freezer CPU Cooler

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Coming back to the affordable range of AIO coolers, we have a great option coming from ARCTIC. It is a multi-compatible AIO cooler that is definitely worth its price range.

The ARCTIC Liquid Freezer II is definitely the right choice for gamers as you can see from its overall design as well as performance levels. With an external mounting kit, you will be able to use this AIO cooler with both Intel as well as AMD CPUs. ARCTIC promises comparatively lower temperature levels on the CPU thanks to the highly efficient cooling plate and pump.

Apart from the dual fan setup over the radiator, it also includes a compact 40 mm fan on the cooler itself which provides additional cooling at the core. You will find it difficult to notice the power cable of the ARCTIC Liquid Freezer II as it offers integrated cable management. The PWM cable is common for both fans and is integrated into the sleeve for a clean setup. And if you are worried about its power consumption, don’t be. With intelligent speed control, it manages to save about 80% power usage compared to most AIO coolers.

Best Features:

  • Rated radiator size of 240 mm
  • Offers a fan speed of 200 to 1800 RPM
  • Compatible with both Intel and AMD CPU sockets
  • Comes with 6 years warranty

Pros:

  • Unique in terms of design
  • Additional 40 mm fan for cooling the core
  • Up to 80% lesser power consumption

Cons:

  • Its highest fan speed is lower than a few other options

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5. DEEP COOL Castle 280EX CPU Cooler

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Deep Cool might be a new brand name for you when it comes to PC components. But, it is also one of the premium brands that design high-performance cooling apparatus just like the AIO cooler mentioned here.

The DEEP COOL Castle 280EX AIO cooler is equipped with dual 280 mm fans on the radiator which are comparatively larger than most other options in the market. Due to increased fan size, the airflow rate is also increased, resulting in higher cooling performance. And with the anti-leak technology, it manages to automatically regulate water pressure and avoid leakage problems.

As for the base, you will find a copper base equipped with up to 25% more skived cooling fins compared to standard AIO coolers which significantly increases the surface area for heat exchange. Thus, resulting in faster cooling even when your CPU is under heavy load. You also don’t have to worry about the looks and design as you will find a customizable set of RGB LEDs along with a swappable logo so that you can create a custom look.

Best Features:

  • Rated radiator size of 280 mm
  • Offers a fan speed of 500 to 1800 RPM
  • Dual 280 mm fans on the radiator
  • Comes with 3 years warranty

Pros:

  • Increased airflow rate
  • Up to 25% larger surface area for cooling
  • 8 dB noise levels

Cons:

  • The maximum fan speed is only 1800 RPM

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6. ID-COOLING CPU Water Cooler

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ID-COOLING is also one of the lesser-known brands for PC cooling components. But. the AIO cooler mentioned here happens to be the most affordable option in the market which might be what you are looking for.

Coming to the most affordable option on our picks, we have the ID-COOLING AURAFLOW X. Despite the low price range, it is packed with dual 120 mm fans on the 240 mm radiator which pushes about 74.5 cubic feet of air per minute. And, you won’t even notice it’s operating as it creates only 35.2 dB noise while it is operational. The pump, as well as fans, feature RGB lighting which can be customized according to the theme of your computer.

However, the RPM levels of the fans are limited to the 700 to 1800 RPM range. Thus, it is suitable for mid-range gaming computers, but not for heavy-duty workstations. If you are using the AIO cooler at minimum speed, it creates only 18 dB of sound which is almost unnoticeable. The ID-COOLING AURAFLOW X comes with 2 years of warranty which is good enough for the price.

Best Features:

  • Rated radiator size of 240 mm
  • Offers a fan speed of 700 to 1800 RPM
  • Fully customizable RGB lights on fan as well as cooler
  • Comes with 2 years warranty

Pros:

  • Dual 120 mm PWM controlled fans
  • Can be customized to match the theme of your cabinet
  • 4 de-vibration rubber paddings on each fan

Cons:

  • Not the best option for overclocked CPUs

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7. MSI MAG Series CPU Liquid Cooler

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MSI is also one of the leading brands when it comes to laptops and PC components such as motherboards and graphic cards. You can find almost all PC components in the MSI lineup of products, including an AIO cooler.

The MSI MAG CORELIQUID 240R can also be a great choice within a comparatively affordable budget range for a high-profile AIO cooler. It comes with a 240 mm radiator that is packed with dual 120 mm fans. The fan speed can be varied between 500 to 2000 RPM which makes it suitable for almost all PC builds. On the lowest settings, it only generates about 16.7 dB noise which is perfect for productive tasks.

The pump is powered by a durable 3-phase motor which guarantees long-lasting reliability. Thus, you will be getting a 3 years long warranty period on the CORELIQUID 240R from MSI. As you might already know, MSI pays great attention to the design and looks of its products. The MSI MAG CORELIQUID 240R also benefits from that with fully customizable RGB support for fans and the cooler.

By default, the MSI MAG CORELIQUID 240R is compatible with a variety of CPUs and sockets. To name a few, you will be able to use the AIO cooler with LGA1150, LGA1151, LGA1156, AM3+, AM3, AM2+, AM2, and TR4 sockets.

Best Features:

  • Rated radiator size of 240 mm
  • Offers a fan speed of 500 to 2000 RPM
  • Wide range of compatibility
  • Comes with 3 years warranty

Pros:

  • A great option for a variety of applications
  • Fan RPM range can be adjusted for high performance or low noise
  • Affordable compared to many other choices

Cons:

  • The warranty period should have been longer

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8. EK AIO Elite All-in-One CPU Liquid Cooler

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Most AIO coolers in the market are equipped with one or two fans at best. But, the AIO cooler designed by EK is considerably better in terms of performance than most standard options.

Coming to the most premium offering from our picks today, we have the EK AIO Elite CPU cooler. This is a heavy-duty AIO cooler that comes with a 360 mm radiator. Due to the increased size, EK has managed to fit 3 120 mm fans on the radiator which generates significantly higher airflow compared to dual-fan radiators. Also, it is universally compatible with almost all Intel as well as AMD CPUs.

Coming to the technical details, the EK AIO Elite AIO cooler operates at a max fan speed of 2000 RPM. However, you can also tune down the fan speed as low as 550 RPM to create a noise-free performance. The fans on the EK AIO Elite are also pretty powerful. These are high-static pressure fans that have fully addressable D-RGB LEDs. As it is a premium option, EK is offering a 5 year long warranty period on the cooler.

Best Features:

  • Rated radiator size of 360 mm
  • Offers a fan speed of 550 to 2000 RPM
  • Fully customizable D-RGB fans
  • Comes with 5 years warranty

Pros:

  • Comes with 6 120 mm fans
  • Tool-less mounting mechanism
  • Reliable warranty period

Cons:

  • Size might not be suitable for all cabinets

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9. Asus ROG Strix CPU Cooler

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In the end, we are bringing a compact option made by Asus. It might be the best choice if you have a compact PC build.

Finishing our picks, we have the Asus ROG Strix LC AIO cooler. Similar to most products designed by Asus, the Asus ROG Strix LC is also one of the premium choices for an AIO cooler. But, it is also the best choice for compact cabinets as the radiator has a rated size of 120 mm. Even with a single fan, the Asus ROG Strix LC AIO cooler manages to deliver 81 cubic feet per minute airflow which is quite better than many other standard options.

As for the compatibility, the Asus ROG Strix LC is ready to go with AMD’s AM4 and TR4 sockets along with Intel’s 115x, 1366, 2011-3 as well as 2066 series sockets. And as there is a single fan, it will only generate about 37.6 dB of noise which is definitely preferable for most users.

The Micro-channel technology of Asus ROG Strix LC also manages up to 30% lower thermal resistance compared to most other AIO coolers. Also, you will receive a 5 year long warranty period on the Asus ROG Strix LC which is quite decent for its price.

Best Features:

  • Rated radiator size of 120 mm
  • Offers a fan speed of 800 to 2500 RPM
  • Aura Sync supported RGB LEDs
  • Comes with 5 years warranty

Pros:

  • The best option for compact PC builds
  • Aura Sync RGB customization
  • Micro-channel technology for up to 30% lower resistance

Cons:

  • Comes with a single fan on the radiator

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Buying Guide for the Best AIO Coolers

Since both soft tube and hard tube water cooling options are quite difficult to install and a bit expensive, many of you would be looking for something similarly powerful but much easier to use. In that case, you can consider going with one of the best AIO coolers present above.

Alongside all these various AIO coolers, you will also find their important specifications and features explained along with each option. And in case you want to learn more, make sure to check out this detailed buying guide for the best AIO coolers:

Radiator Size

One of the most important factors to consider while buying an AIO cooler is the radiator size. In most cases, any AIO cooler which features a larger radiator size offers better cooling options. Some of the common radiator sizes that you can find out there include options like 120 mm, 240 mm, 280 mm, and even 360 mm.

When compared with each other, the largest size of 360 mm will offer the best cooling performance in most cases. This radiator size is directly dependent on the number of fans used in your AIO cooler since dual 120 mm fans result in a 240 mm radiator and triple 120 mm fans result in a 360 mm radiator.

Fan Speed

Another factor that can affect the cooling performance of your AIO cooler is the fan speed of the included fans. This is due to the reason that faster fans offer higher airflow and generally result in better cooling. While buying AIO coolers, you can find fan speed ranges like 500 to 200 RPM, 600 to 2200 RPM, 800 RPM to 2500 RPM, and more. Out of all these options, the higher fan speed rating of 800 RPM to 2500 RPM will generally offer better cooling performance.

RGB Lighting

Similar to most other modern computer hardware, you can also find RGB lighting in AIO coolers. And while this RGB lighting does not have any effect on the cooling performance, it certainly makes your computer look better. So if you want customizations with your AIO cooler, you should check its RGB lighting options.

While most AIO coolers out there only offer RGB lighting on the pump unit, a few of them also include RGB fans. Such AIO coolers which include RGB fans don’t require you to buy RGB fans separately and offer much better design and aesthetics inside your computer.

Noise Levels

Even though AIO coolers are much more silent as compared to air coolers, they too have some noise output. This noise output becomes even higher when the pump is functioning at its highest performance levels. Because of this, checking the noise levels of your AIO cooler can be a great idea if you are building a silent PC. In comparison to each other, a lower noise level of 35 dB or 40 dB will be much more silent than a 50 dB noise rating.

CPU Socket Compatibility

Similar to any other CPU cooler that you may use on your computer, you will also have to mount your AIO cooler on the motherboard. But this is only going to be possible if your AIO cooler is compatible with the CPU socket used by your motherboard. For the same, make sure to check the CPU compatibility of your AIO cooler.

Some of the common CPU sockets that you can find compatible with AIO coolers include Intel LGA 1151, 1150, 1155, 1156, 1366, 2011, 2011-3, 2066, and AMD AM4 as well as AMD TR4 CPU sockets. Any AIO cooler which supports multiple of these CPU sockets is going to be quite versatile and perfect for all kinds of computer builds.

Warranty

After choosing the right AIO cooler for your needs, you would want it to stay functional for as long as possible. This becomes even more important considering that AIO coolers have a water pump inside which may not last as long as air coolers. Hence, checking the included warranty of your AIO cooler is highly recommended. While entry-level AIO coolers generally offer only a 2 or 3-year long warranty, high-end options can even come with a 5 or 6-year long warranty where a longer warranty is always better for longevity.

FAQs for the Best AIO Coolers

Q. Do I have to refill AIO coolers?

Most AIO coolers are designed to be completely maintenance-free and are called “closed-loop” coolers. As you can imagine, these systems are designed in such a way that there is no possibility of leakage. However, if the liquid in the AIO cooler has leaked or evaporated over time, you might need to refill the cooler manually.

Q. What is the expected lifespan of an AIO cooler?

An AIO cooler is guaranteed to work flawlessly for about 5 to 7 years. But, the actual lifespan of the unit you own might vary based on multiple external factors. Even though a standard AIO pump is warranted for about 70000 hours by most brands, it might be affected by external temperature, maintenance, usage, and other factors.

Q. Are AIO coolers better than air coolers?

AIO coolers are definitely better compared to air coolers. As you might already know, the heat transfer rate changes drastically based on the medium. As the fluids used in AIO coolers are specifically designed for a high heat transfer rate, they will cool down your CPU much faster. Most overclocked CPUs are better off with an AIO rather than an air cooler.

Conclusion

An AIO cooler or an all-in-one cooler is a complete unit for liquid cooling your computer’s CPU even if you have a high-end CPU. These CPU coolers are called AIO coolers since they include a water pump, a radiator, tubes, and cooling fans in a pre-built unit which makes it much easier to use than traditional water cooling.

Because of this, we have already enlisted some of the best AIO coolers up above in this listicle. To help you in picking the right AIO cooler, all these AIO coolers also have their significant factors and details mentioned along with them. We have also given a complete buying guide for the best AIO coolers up above. However, if you are still confused, consider going with one of our ideal recommendations for the best AIO coolers:

Our first recommendation would be the NZXT Kraken X53 simply because of its extended reliability as well as performance level. This AIO cooler consists of a 240 mm radiator that operates over fan speeds ranging from 500 to 2000 RPM capacity. Thus, you can adjust the cooler performance based on your requirements. Also, it is backed with 6 years of warranty which shall give you great value for your investment.

If you are looking for ultimate performance, then the EK AIO Elite should be your choice. This AIO cooler comes with a 360 mm radiator which is the largest option on our list. EK also includes 6 high-pressure Vardar fans with the package which is rarely available with any other options. You will also get a 5 years long warranty on the EK AIO Elite AIO cooler which is necessary for such a high-end option.

Lastly, we will recommend getting the Asus ROG Strix LC AIO cooler. While it is also rather a premium choice, it is designed for a compact PC build with a 120 mm radiator. With a single radiator, it delivers 81 cubic feet per minute airflow which makes it suitable for most applications. Also, it is universally compatible with almost all Intel as well as AMD sockets.

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