A 240mm all-in-one (AIO) liquid cooler uses a pump, a cold plate and a radiator with two 120mm fans to move heat away from a processor. It is a common choice for Ryzen and Intel desktops when an air tower is too big or too loud. What matters: your case must fit the radiator, and the mounting kit must match your socket.
The six coolers below are 240mm models from well-known and value brands. Details come from the product listings, and we have not installed these coolers ourselves. Check socket support, case clearance and fan specs on the product page.
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Check Before You Buy
| Check | Why |
|---|---|
| Case support | The case must list room for a 240mm radiator at the front or top |
| Socket | AM4, AM5, LGA1700, LGA1851 and others need the right bracket |
| Radiator clearance | Memory and VRM heatsinks can block a top-mounted radiator |
| Hose length and fans | Longer hoses and standard 120mm fans make routing and replacement easier |
Our Six Picks
| Cooler | Notes from the listing |
|---|---|
| CORSAIR NAUTILUS 240 RS ARGB | Low-noise liquid cooler, ARGB |
| NZXT Kraken Plus 240 | 240mm AIO with an LCD |
| Cooler Master ML240L RGB V2 | Gen3 dual chamber pump, SickleFlow 120 PWM ARGB fans, AM5, AM4, LGA1700, LGA1200 |
| MSI MAG Coreliquid A13 240 | Dual 120mm ARGB PWM fans; LGA1700, LGA1851, AM5, AM4 |
| Thermalright Aqua Elite 240 V3 | Dual PWM ARGB fans, S-FDB bearings; AM4, AM5, several Intel sockets |
| Antec Ultra 240 ARGB | 2x120mm PWM fans; LGA1200, LGA1851, AM4, AM5 |
The 6 Best 240mm AIO CPU Coolers
1. CORSAIR NAUTILUS 240 RS ARGB
A low-noise 240mm AIO from a well-known PC parts brand, with ARGB lighting.
Suits: quiet builds. Strengths: a recognized brand and a low-noise focus. Weaknesses: check socket support on the product page. Skip it if you do not want RGB lighting.
View CORSAIR NAUTILUS 240 RS ARGB on Amazon
2. NZXT Kraken Plus 240
A 240mm AIO with an LCD on the pump head for animations or system stats.
Suits: builds with a window and a showcase look. Strengths: an LCD display. Weaknesses: features like the LCD need software. Skip it if you want a plain cooler.
View NZXT Kraken Plus 240 LCD on Amazon
3. Cooler Master MasterLiquid ML240L RGB V2
A 240mm AIO with a dual-chamber pump, two SickleFlow 120 PWM ARGB fans and listed support for AM5, AM4, LGA1700 and LGA1200.
Suits: a straightforward upgrade for current sockets. Strengths: a named socket list and a familiar brand. Weaknesses: check newer Intel socket support. Skip it if you are on LGA1851.
View Cooler Master MasterLiquid ML240L RGB V2 on Amazon
4. MSI MAG Coreliquid A13 240
A 240mm AIO with dual 120mm ARGB PWM fans, listed for LGA1700, LGA1851, AM5 and AM4.
Suits: a build that spans both AMD and recent Intel sockets. Strengths: a broad socket list. Weaknesses: check radiator clearance. Skip it if you use an older socket.
View MSI MAG Coreliquid A13 240 on Amazon
5. Thermalright Aqua Elite 240 V3
A 240mm AIO with dual PWM ARGB fans on S-FDB bearings, listed for AM4, AM5 and several Intel sockets.
Suits: a build that wants a value-focused brand. Strengths: PWM fans and broad compatibility. Weaknesses: a less mainstream brand than Corsair or NZXT. Skip it if you want a big-name brand.
View Thermalright Aqua Elite 240 V3 on Amazon
6. Antec Ultra 240 ARGB
A 240mm AIO with two 120mm PWM fans and listed support for LGA1200, LGA1851, AM4 and AM5.
Suits: a recent AMD or Intel build. Strengths: a named socket list. Weaknesses: the listing gives few other details. Skip it if you want an LCD pump head.
View Antec Ultra 240 ARGB on Amazon
Installation Tips
- Mount the radiator so the pump is not the highest point, to limit air near the pump.
- Connect the pump header to a full-power header on the motherboard.
- Apply thermal paste only as the maker directs; some coolers come pre-applied.
- Check hose clearance so nothing presses against the memory.
Mistakes to Avoid
- Buying before checking your case supports a 240mm radiator.
- Assuming every socket is covered.
- Plugging the pump into a header that slows it down.
- Leaving the protective film on the cold plate.
AIO Cooler FAQ
Is an AIO better than an air cooler?
It depends on the case and the chip. An AIO moves heat to a radiator and can be quieter, but a good air cooler has no pump to fail.
Will it fit my case?
Check the case listing for 240mm radiator support and the position (front or top).
How long does an AIO last?
It varies by model and use. Check the warranty on the product page.
The Short Version
For a known name and low noise, the CORSAIR NAUTILUS 240 RS. For a display on the pump, the NZXT Kraken Plus 240. For a clear socket list, the Cooler Master ML240L V2 or the MSI Coreliquid A13 240. For a value brand, the Thermalright Aqua Elite 240 V3.
