5 best AIO coolers and liquid cooling systems

Radu Tyrsina
by Radu Tyrsina
CEO & Founder
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Best AIO Coolers

Picking one of the best liquid cooling systems is a common practice for keeping your overclocked processor safe.

A standard air-cooler is often in the cards too, but you can never go wrong with a good AIO cooler when it comes to getting the highest cooling performance.

Choosing that perfect all-in-one cooling solution can sometimes turn into a headache, so we’re trying to make your choice easier.

Here we’ve added the top 5 AIO coolers – liquid cooling systems of the moment.

If you’re curious, you can check them out right below. Plus, the current deals are a sign that you shouldn’t postpone any longer buying the AIO cooler your gaming PC desperately needs.

Note: Deals are subject to change. Keep in mind that the price tag often varies. We recommend going to the vendor’s website to check the price. Some of the products may be out of stock by the time you’ve made your purchasing decision. So, hurry up and hit the buy button.

What are the best deals on AIO coolers?

Cooler Master MasterLiquid ML240L RGB V2

  • Dual chamber pump
  • Industrial grade seal
  • RGB lighting
  • Wired RGB controller included
  • Not recommended to tighten the screws

The MasterLiquid ML240L model comes with a refreshed design and enforced capabilities to deliver even more of what you expected.

The Dual Chamber Pump increases cooling efficiency. When combined with the SickleFlow 120 RGB fan and the enlarged radiator for optimized heat dissipation, you can only obtain the best cooling performance without compromising on noise.

Quiet, efficient, and esthetically pleasant, the MasterLiquid ML240L is a complete cooling solution that will make you forget all about overheating.

MSI MAG CORELIQUID 360R

  • Rotating Cap Design
  • 360mm Radiator
  • Triple 120mm RGB PWM Fans
  • Customizable RGB lighting
  • Some users reported fan grinding after short usage

A powerful CPU is a must-have for good quality gameplay – so is a cooling system.

And there is no better alternative than this modern AIO cooler with PWM fans and a radiator-integrated pump with noise reduction.

To further increase efficiency and also please the eye, there is a rotatable cap included and customizable RGB lighting at your disposal.

Corsair H100i RGB PLATINUM AIO Liquid CPU Cooler

  • No less than 16 individually controlled RGB LEDs
  • Complete control over your cooler’s RGB lighting
  • Coolant temperatures control through the CORSAIR iCUE software
  • Low-noise pump design
  • Rather poor customer service

A high-quality closed-loop liquid cooler such as Corsair H100i RGB PLATINUM most likely meets your demands.

It features RGB, 3 x 120mm fans that levitate, while thankfully staying relatively quiet.

At stock speeds, this cooler is once again a great choice, as well as one of the cheapest options for now.

Corsair Hydro Series H150i PRO AIO Liquid CPU Cooler

  • Versatile Corsair iCUE software
  • Useful Zero RPM mode ready to allow fans to stop entirely at low temperatures
  • Fitted with various rainbow LEDs
  • Some users keep getting weird temperature spikes

CPU coolers can be one of the noisiest parts of any computer. That doesn’t mean they have to be noisy all the time and Corsair Hydro Series H150i PRO makes a statement in the noise department.

This AIO cooler lets you experience incredible cooling performance and those fantastically low noise levels make you feel like in paradise.

NZXT Kraken X63 280mm – RL-KRX63-01

  • Stunning infinity mirror lighting design makes it an incredible build centerpiece
  • Mid-range form factor
  • New Aer P radiator fans included
  • Backed by a 6-year warranty
  • CAM app issues

Enjoy a better cooling performance and greater CPU protection with this AIO CPU liquid cooler.

It may not be the quietest option out there, but it sure does cool your CPU, and it’s impossible not to notice given the aesthetics.


Choosing the right AIO cooler is very important. There’s no excuse not to grab one as soon as possible, especially if you’re doing intensive work on your PC.

If you consider we missed other relevant liquid cooling systems choices, just let us know in the comments below!

FAQ: Learn more about liquid cooling systems

  • Are liquid cooling systems worth it?

When it comes to heat dissipation and noise reduction, there is nothing more effective than water. So, yes, liquid cooling systems remain one of the best ways to cool a CPU.

  • What liquid is used in liquid cooling?

Water-based solutions are the most common fluids used by high-performance liquid cooling products.

  • Do you have to refill liquid cooling PC?

If you go for an AIO (all-in-one) cooling system, then no. These are sealed coolers that don’t require refills – have a look at the best AIO liquid cooling systems to make your pick.

Editor's Note: This article was originally published in November 2019 and was revamped and updated in November 2020 for freshness, accuracy, and comprehensiveness.