For most builders, the best AIO liquid cooler in this set is a 240mm unit from a mainstream maker, since 240mm fits more cases than larger radiators. The Cooler Master Elite Liquid 240 is the low-cost pick, the Corsair Nautilus 240 RS is the quiet-leaning pick, and the NZXT Kraken Plus is the display-led premium option. All eight listings below are 240mm, so choices come down to sockets, fans, looks and price.
Eight 240mm AIO coolers at a glance
Thermalright Aqua Elite 240 V3 Water Cooling CPU Cooler, Double PWM ARGB Fans with S-FDB Bearings,Efficient PWM Controlled Pump,for AMD/AM4/AM5, Intel LGA1150/1151/1200/1700/1851, (AE240 V3)
Included for 'Best AIO Liquid Cooler: Eight 240mm Picks Compared by Socket and Fit' as a representative money in this roundup; selection reflects the product set returned for this topic.
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Cooler Master Elite Liquid 240 AIO Liquid CPU Cooler, ARGB | AMD AM5/AM4 & Intel LGA1851/1700 Support Cooler, 240mm, Dual-Chamber Pump, 2x Low-Noise ARGB PWM Fans, Easy Installation
Included for 'Best AIO Liquid Cooler: Eight 240mm Picks Compared by Socket and Fit' as a representative money in this roundup; selection reflects the product set returned for this topic.
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NZXT Kraken Plus 240 RGB - 240mm AIO CPU Cooler, LCD - White | 240mm RGB AIO with customizable LCD, F240 RGB Core fan, and Turbine pump. Better thermals, synced RGB via CAM.
Included for 'Best AIO Liquid Cooler: Eight 240mm Picks Compared by Socket and Fit' as a representative money in this roundup; selection reflects the product set returned for this topic.
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MSI MAG Coreliquid A13 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - LGA 1700/1851 / AM5/AM4 Compatible - Dual 120mm ARGB PWM Fans, Black
Included for 'Best AIO Liquid Cooler: Eight 240mm Picks Compared by Socket and Fit' as a representative money in this roundup; selection reflects the product set returned for this topic.
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CORSAIR Nautilus 240 RS Low-Noise Liquid CPU Cooler – Black | 240mm AIO, Direct Motherboard Connection, Daisy-Chain, Intel LGA 1851/1700, AMD AM5/AM4, 2x RS120 Fans Included
Included for 'Best AIO Liquid Cooler: Eight 240mm Picks Compared by Socket and Fit' as a representative money in this roundup; selection reflects the product set returned for this topic.
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Cooler Master 240 Core II AIO Liquid CPU Cooler, Infinity Mirror ARGB White | AMD AM5/AM4 & Intel LGA1851/1700 Support Cooler, 240mm, Dual-Chamber Pump, 2x Low-Noise ARGB PWM Fans
Included for 'Best AIO Liquid Cooler: Eight 240mm Picks Compared by Socket and Fit' as a representative money in this roundup; selection reflects the product set returned for this topic.
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NZXT Kraken Plus 240-240mm AIO CPU Cooler, LCD - Black | 240mm AIO with customizable LCD and Turbine pump for improved thermals. F120P fans, simple install, CAM control.
Included for 'Best AIO Liquid Cooler: Eight 240mm Picks Compared by Socket and Fit' as a representative money in this roundup; selection reflects the product set returned for this topic.
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Antec Ultra 240 ARGB Liquid CPU Cooler, 2x120mm PWM Fans, High-Performance Pump, Intel LGA 1200/1851/20XX & AMD AM4/AM5
Included for 'Best AIO Liquid Cooler: Eight 240mm Picks Compared by Socket and Fit' as a representative money in this roundup; selection reflects the product set returned for this topic.
View on Amazon| Model | Key point from title | Price tier | Best for |
|---|---|---|---|
| Thermalright Aqua Elite 240 V3 | Wide socket list, dual ARGB PWM fans | Budget | Older platforms |
| Cooler Master Elite Liquid 240 | Dual-chamber pump, 2 ARGB PWM fans | Budget | Cheapest 240mm |
| NZXT Kraken Plus 240 RGB (White) | LCD, Turbine pump, CAM, RGB fans | Premium | Showpiece builds |
| MSI MAG Coreliquid A13 240 | LGA1700/1851, AM5/AM4, ARGB fans | Mid-range | Mainstream pick |
| Corsair Nautilus 240 RS | Low-noise, RS120 fans, daisy-chain | Mid-range | Quieter builds |
| Cooler Master 240 Core II | Infinity Mirror ARGB, dual-chamber pump | Mid-range | White builds |
| NZXT Kraken Plus 240 (Black) | LCD, Turbine pump, F120P fans | Premium | Dark showpiece |
| Antec Ultra 240 ARGB | LGA1200/1851/20XX, AM4/AM5, 2 PWM fans | Budget | Value with older Intel |
Cooler by cooler
Thermalright Aqua Elite 240 V3
The title lists double PWM ARGB fans with S-FDB bearings, a PWM-controlled pump, and a socket list covering AM4, AM5 and Intel LGA1150, 1151, 1200, 1700 and 1851. That Intel range is wider than most 240mm listings in this set, which helps if you are cooling an older board. Everything beyond the title, including thickness and tube length, needs a listing check. Because fan and pump behavior is unstated, the bearing wording is the one concrete durability clue in the title, and it is still a seller description.
Pros
- Widest Intel socket list in this set
- PWM pump control
- Dual ARGB fans with S-FDB bearings
Cons
- Title gives no radiator thickness
- Pump noise unknown from the title
Who it’s for: Builders reusing an older Intel or AM4 board on a budget.
Cooler Master Elite Liquid 240
The title cites a dual-chamber pump, two low-noise ARGB PWM fans, and support for AM5, AM4, LGA1851 and LGA1700. Easy installation is a seller claim. This is the lowest-priced 240mm in the set, and it does not list older Intel sockets such as LGA1200 in the title. A 240mm radiator at this price is a sensible match for mid-range chips, and the lighting is software-synced only if your board has an ARGB header, which is worth confirming.
Pros
- Lowest tier in this roundup
- Dual-chamber pump wording
- Current Intel and AMD sockets
Cons
- No LGA1200 in the title
- Basic ARGB design with no screen
Who it’s for: Straightforward builds where price matters most.
NZXT Kraken Plus 240 RGB (White)
Listed with a customizable LCD, an F240 RGB Core fan setup, a Turbine pump and CAM software for synced RGB. The title does not list sockets, so check the listing for your CPU. The LCD is the main reason to pay more: it adds a display, not cooling performance, as far as the title shows. The white finish shows dust and cable colors through the case panel, so think about the rest of the build before choosing it, and check the listing for the fan colour.
Pros
- LCD panel on the pump head
- White finish
- CAM software control
Cons
- Premium tier for a screen
- Socket list not in the title
- Near-duplicate of the black Kraken
Who it’s for: Builds where looks matter and the budget is flexible.
MSI MAG Coreliquid A13 240
The title lists a 240mm radiator, dual 120mm ARGB PWM fans, and LGA1700, LGA1851, AM5 and AM4 compatibility. It is a mainstream mid-tier design from a motherboard brand, which can matter for software and warranty handling. Pump specs are not in the title. Motherboard-brand coolers often come with their own software and warranty route, so look at what the listing says about support before assuming it matches your board.
Pros
- Dual 120mm ARGB PWM fans
- Four current sockets listed
- Black finish
Cons
- No LGA1200 listed
- Few details beyond sockets
Who it’s for: Mid-range builds that want a major-brand pump.
Corsair Nautilus 240 RS
The title says low-noise, with a direct motherboard connection, daisy-chain support, and two RS120 fans, for Intel LGA1851 and 1700 and AMD AM5 and AM4. Direct motherboard connection means the pump or fan speeds can be controlled from a motherboard header, but check what the listing says about connectors. It prioritises quiet over lighting. In practice, a direct motherboard connection also means fewer loose cables to hide behind the tray, which helps in a small case with little cable space.
Pros
- Low-noise positioning
- Daisy-chain cabling
- Direct motherboard connection
Cons
- Higher tier than the budget sets
- No LGA1200 in the title
Who it’s for: Quiet builds where cable tidiness counts.
Cooler Master 240 Core II
The title adds an Infinity Mirror ARGB look in white to the same dual-chamber pump, two low-noise ARGB PWM fans and AM5, AM4, LGA1851 and LGA1700 support as the Elite model. It is a step up in looks, not an obvious step up in cooling, based on the titles. Compared with the Elite, expect the extra money to go on appearance and the mirrored ring on the pump head, so only pay it if the pump head is visible from your side panel.
Pros
- Infinity Mirror styling
- White finish
- Dual-chamber pump
Cons
- Mostly a cosmetic upgrade over the Elite
- No older Intel sockets listed
Who it’s for: Light-colored builds that want a mirror effect.
NZXT Kraken Plus 240 (Black)
The same Kraken Plus family as the white listing: an LCD, a Turbine pump, F120P fans and CAM control. The two listings differ in colour and in named fans, so compare closely before paying the premium for either. Of the two, this one is priced higher. If you are choosing between the two Krakens, look at the named fans and the colour, since the title is the only difference we can verify and the black one carries the higher tier.
Pros
- LCD and Turbine pump
- Black matches most cases
- Simple install claim
Cons
- Highest price tier in the set
- Near-duplicate of the white version
Who it’s for: Builders who want the NZXT screen in a dark build.
Antec Ultra 240 ARGB
The title lists two 120mm PWM fans, a high-performance pump, and sockets that include LGA1200, LGA1851 and 20XX alongside AM4 and AM5. 20XX is vague, so confirm exact sockets on the listing. It is a value option with a broad Intel list. The vague socket wording means this is a listing to read twice, and buyers with LGA1200 boards should confirm the bracket is in the box before relying on the title.
Pros
- Broad Intel list including LGA1200
- Low tier
- Dual PWM fans
Cons
- 20XX wording is unclear
- Little pump detail
Who it’s for: Budget buyers on LGA1200 or similar.
Where this list comes from
This list draws on published specifications, manufacturer documentation and buyer reviews, read through listing titles. Nobody on the team used or measured these units, so there are no temperature or noise rankings here. Because every product is a 240mm radiator, we do not compare sizes; if you need 280mm or 360mm, see the 240mm page for how to size a radiator to your processor.
What matters when choosing an AIO
Radiator size and heat load
Radiator length sets the surface area that sheds heat. A 240mm unit suits mid-range processors; high-power chips push toward 280 or 360mm. Titles rarely list thermal ratings, so pair the radiator with your processor’s power class rather than chasing a number. If you are building around a Ryzen chip, our AMD cooler guide explains the choice between air and liquid.
Pump and fan noise
Pump noise is often a steady hum, while fans vary with load. PWM fans and pumps let the motherboard slow them at idle. Low-noise wording in a title is a seller claim, so check buyer comments for whirring or gurgling after a few weeks. Setting a gentle fan curve in the BIOS lowers noise at idle, and a pump header set to a steady speed tends to be quieter than one that ramps up and down with every load spike.
Socket support
This is where the titles help, because socket lists are the one spec every title gives. The Thermalright and Antec list older Intel sockets such as LGA1200; the Cooler Master, MSI and Corsair titles list LGA1700 and 1851 only. A mismatch means the bracket in the box will not fit. Always confirm your exact socket on the listing and your motherboard manual, and remember that a newer-socket cooler cannot be assumed to cover an older board. If you are upgrading the CPU later, check that the same bracket will still cover the new socket.
Case fit and reliability
Check that the case supports a 240mm radiator at the front or top, and that memory and VRM heatsinks do not collide with tubing. Liquid coolers have more moving parts than air coolers, so look at the warranty length on the listing.
LCD or plain pump head
An LCD adds a display, not cooling. If a screen is not visible in your case, you are paying for something you will not see.
Case-fit sums to do first
Estimate before ordering. A 240mm radiator with fans is roughly 275mm long and 120mm wide, and a typical radiator plus fan stack is about 50mm thick, though exact numbers differ per listing. Add 5mm for tubing clearance. In a top mount, measure from the motherboard top edge to the roof: if you have less than about 55mm over the RAM, the stack may press on the memory. In a front mount, measure the front-to-GPU gap. These figures are assumptions, not listing data.
Mistakes buyers make
- Paying for the screen and expecting lower temperatures. The LCD is cosmetic.
- Ignoring socket support. Several titles skip LGA1200.
- Not measuring the case. Not every case takes a 240mm radiator in the same position.
- Assuming white means identical. The two NZXT listings differ in named fans.
- Skipping software needs. Features like CAM require installing an app.
- Mounting with the pump high. Air collects at the highest point, so the pump should not sit there.
Verdict
Pick the Cooler Master Elite Liquid 240 for lowest cost, the Antec or Thermalright if you need older Intel sockets, and the Corsair Nautilus 240 RS if quiet and cable tidiness matter. The Kraken Plus is for people who want the display. New to liquid cooling? Our beginner AIO guide and budget AIO list help narrow the choice.
Frequently asked questions
Is a 240mm AIO enough?
For mid-range processors, usually yes. A 240mm radiator suits many gaming builds, and it fits more cases than 280mm or 360mm units. High-power processors can push past what a 240mm handles quietly. Check your processor’s power class and whether your case has space before moving up, and compare with a larger radiator only if the case supports it without blocking the memory slots.
Is an AIO better than an air cooler?
Not automatically. A good air cooler can match a basic AIO, while liquid coolers allow a cleaner look and move heat to a radiator at the case edge. AIOs have a pump and tubing that can fail, so check warranty terms. Choose based on case, noise and looks, not assumption, and weigh the extra install time that liquid coolers need against the simplicity of a tower cooler.
Does the LCD improve cooling?
Based on the listing titles, no. The LCD on the NZXT Kraken Plus shows images, temperatures or custom content, but the cooling comes from the radiator, pump and fans. If you cannot see the pump head through your case, the display is a cost with no benefit, so spend the difference on a better case fan or a larger radiator instead.
Which sockets do these cover?
It varies. The Thermalright and Antec titles include older Intel sockets such as LGA1200, while others list only LGA1700 and LGA1851 with AM4 and AM5. Check your motherboard manual and the listing. If your socket is not named, do not assume the bracket is included, and contact the seller before buying if the listing is unclear about your platform.
How long do AIO coolers last?
Listings rarely give a lifespan, so look at the warranty period on the page. Pumps and tubing are the parts that wear, and a quiet cooler can become noisy as air collects. Keep the radiator positioned so the pump is not the highest point, and check for rising temperatures over time. Most listings quote a warranty rather than a lifespan, so that period is the best guide.
