Liquid AIO coolers are closed-loop CPU cooling systems that arrive pre-filled, with a pump block, tubes and a radiator. They suit PC builders whose processor has outgrown an air cooler. Our range has over 370 models, from all-in-one coolers to liquid cooling kits, from Alphacool, ASUS, Thermaltake, Lian Li, Corsair and others.
How to choose an AIO liquid cooler
Radiator size. The number of fans shows the size: two 120 mm fans mean a 240 mm radiator, three mean 360 mm. In our range there are more three-fan models than two-fan ones, most with 12 cm fans and some with 14 cm. A larger radiator removes heat more easily and lets the fans spin slower.
Compatibility. Check that the cooler supports your processor socket (for example Intel LGA1700 or AMD AM5) and that your case accepts the radiator size at the top, front or rear. In smaller cases, radiator thickness and tube length matter as well.
Noise. Maximum fan speeds in our range run from 2000 to 3000 RPM. Audible noise depends on more than that figure: the pump matters too, as does the ability to adjust fan speed to temperature.
AIO or kit. A ready-made AIO is simple to fit and needs no filling or maintenance. Liquid cooling kits are a smaller part of our range and are meant for people who want to build their own loop, and some also suit the motherboard or the case. They call for more experience.
Lighting and colour. There are black and white models, and most have multicolour lighting. If you want to control it, check that your motherboard has an ARGB header or that the cooler comes with its own control software.
AIO cooler brands
- Alphacool: a German maker known for custom water cooling parts, which is why its selection includes kits.
- ASUS: ROG series coolers, with a built-in display on the pump block of some models.
- Thermaltake: makes both cases and cooling, and offers AIO coolers and custom loop parts.
- Lian Li: known for cases and Uni Fan fans, and its Galahad coolers are designed to match them.
- Corsair: fan speed and lighting are managed through its iCUE software.
- be quiet!: a German maker with a reputation for quiet coolers.
- MSI and Gigabyte: motherboard makers whose coolers match their own boards and come with their own lighting software.
- Cooler Master: the MasterLiquid series of AIO coolers.
- Thermalright: known for air coolers, and now also offers AIO models.
Also in our range: DarkFlash and TRYX.
Frequently asked questions about AIO coolers
Which AIO size should I choose: 240, 280 or 360 mm?
A 240 mm radiator is usually enough for mid-range processors. Choose 360 mm if your processor produces a lot of heat or you want quieter running. A 280 mm radiator uses 140 mm fans and sits in between, but first make sure your case can take it.
Is an AIO cooler better than an air cooler?
Not always. A large AIO radiator usually cools better than a mid-sized air cooler and leaves more room around the processor. However, a big air cooler can match it and has fewer moving parts.
Does an AIO cooler need maintenance?
A sealed AIO needs no refilling or coolant changes. It is enough to clean dust from the radiator and fans from time to time. The pump and coolant do wear over the years, so an AIO has a limited lifespan.
Where should I mount an AIO radiator in the case?
Most often at the top, with the fans exhausting air, or at the front, with the fans drawing air in. The pump should not be the highest point of the loop, as air can collect there. Check which radiator sizes your case supports before buying.
