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Cooler Master MasterLiquid ML240L RGB All-In-One Liquid CPU Cooler

CCL Code: CLR1651
Manufacturer Code: MLW-D24M-A20PC-R1
Manufacturer: Cooler Master


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Liquid CPU cooling optimized for low noise and performance. Easy to install 240mm radiator makes this the perfect all-in-one liquid cooling for novice to experienced builders.Now enhanced with RGB lighting feature, this is a for anyone that also wants lighting effects in their system.

RGB Lighting Sync

MasterLiquid ML240L RGB makes syncing the lighting easier than ever before. It comes with 2 x MasterFan RGB, a water pump lights up with RGB and controller to easily control and sync it all.

Dual Chamber Pump with RGB

Isolates the heated coolant to maximize the results of the cooling of the processor. RGB function to sync with the system.

Stylish Radiator

Custom design low resistance radiator allows higher flow rate, heat exchange efficiency and provides unmatched cooling performance.

Air Balance Fans

Aside from having perfect balance of airlfow and airpressure to exhaust air through the fins and out of the case, the dual MF120R RGB fans uses an silent driver IC that smoothens fan operation to reduce fan clicks and vibrations.

Easy Installation and Reliable

The installation is quick and easy for both Intel and AMD platforms, with everything you need straight out of the box. Once installed, the MasterLiquid ML240L RGB requires zero maintenance for optimal silence performance.

Main Features

  • Double Tubing - FEP tubing makes it durable yet flexible. Sleeved tubing on the exterior to give it a premium look.
  • Dual MF120R RGB Fans - Dual RGB fans that provide perfect balance of airlfow and airpressure to exhaust air through the fins and out of the case.
  • Dual Chamber RGB Pump - Isolates the heated coolant to maximize the results of the cooling of the processor. RGB function to sync with the system.
  • Low Resistance 240mm Radiator - Beautifully designed to maximize cooling surface area

CPU Types

Socket Intel LGA 2066 / 2011-v3 / 2011 / 1151 / 1150 / 1155 / 1156 / 1366 / 775 socket • AMD AM4 / AM3+ / AM3 / AM2+ / AM2 / FM2+ / FM2 / FM1 socket


Fan Speed 650 to 2000 RPM
Noise Level 30 dbA
Lifetime 160,000 Hrs
Fan Air Pressure 2.34 mm H²O
Airflow 66.7 CFM

Fan Speed Controller

Connector 4-pin with PWM
Voltage 12 V


Form Factor CPU Cooler
Case Colour Black
Heatsink Material Aluminum
Pack Quantity 1
Width 27.70 cm
Depth 2.70 cm
Height 11.96 cm


Warranty 2 Years

Key Features

Compatible with Socket AM3 Yes
Compatible with Socket AM2+ Yes
Compatible with Socket AM2 Yes
Compatible with Socket 939 No
Compatible with Socket 940 No
Compatible with Socket 754 No
Compatible with Socket A No
Compatible with Socket 1366 Yes
Compatible with Socket 1156 Yes
Compatible with Socket 775 No
Compatible with Socket 771 No
Compatible with Socket 478 No
Compatible with Socket 423 No
Compatible with Socket 370 No
Heatpipe Technology No
Includes Fan Yes
Compatible with Socket 2011 Yes
Compatible with Socket 1155 Yes
Compatible with Socket AM3+ Yes
Compatible with Socket FM1 Yes
Display Model in Showroom No
Compatible with Socket FM2 Yes
Liquid Cooler Yes
Compatible with Socket 1150 Yes
Compatible with Socket AM1 No
Watercooler Yes
Compatible with Socket 1151 Yes
Compatible with Socket AM4 Yes
Compatible with Socket TR4 No
Compatible with Socket 2066 Yes
Radiator Size 240 mm
Compatible with Socket 1200 Yes
Compatible with Socket 1200 Yes

Item Details

Manufacturer Cooler Master
Manufacturer Code MLW-D24M-A20PC-R1
EAN 4719512063453
Condition New

Warranty Information

Warranty 2 Years

Manufacturer Information

Manufacturer Cooler Master
Manufacturer Code MLW-D24M-A20PC-R1

Do you have you a question about the Cooler Master MasterLiquid ML240L RGB All-In-One Liquid CPU Cooler?

Q: Hi, Will this fit Msi x570 tomahawk motherboard? Thx
Answer by Website User on 22nd June 2020
Yes, it will. -MR
0 customers found this answer helpful.
Post Answer
Q: Would this fit with a game max Polaris RGB case.
Answer by Website User on 13th February 2020
This will fit in that case in the front. - Kristian N
0 customers found this answer helpful.
Post Answer
Q: Hi, Will this fit in the Be Quiet Silent Base 600 Gaming Case?
Answer by Website User on 9th August 2019
Yes, this case can support this water cooler.
0 customers found this answer helpful.
Post Answer
Q: Will this fit ok in my Coolermaster Masterbox lite 3.1 firstly and is this compatible with my asus prime a320m-k motherboard for powering through the pwm ?
Answer by Website User on 2nd July 2019
This does not officially support that case, it will be compatible with the motherboard. - Kristian N
1 customer found this answer helpful.
Post Answer
Q: Would this fit in the front or top of a Cooler Master MasterBox MB520 with a ATX motherboard (MSI 970 Gaming board)?
Answer by Website User on 13th June 2019
This cooler would fit into the MB520 case along with a full size ATX motherboard. - Matthewt
0 customers found this answer helpful.
Post Answer
Q: Does this come with pre applied thermal paste
Answer by Website User on 5th March 2019
It will have it pre-applied or it will come with a tube of paste.
0 customers found this answer helpful.
Post Answer
Q: Would this fit into the front of the NZXT H400 Mid Tower case?
Answer by Website User on 5th September 2018
The radiator will fit but the cable to the pump may not be long enough. I would recommend installing this into the top of the case.
0 customers found this answer helpful.
Post Answer
Q: Hi, I am planning to install this onto my brand new Intel Core i5-8600K 3.6GHz 6-core CPU, and I was wondering whether this cooler includes thermal paste in the pack, or whether I would get it with the CPU or would I have to buy it separately? Many thanks
Answer by Website User on 3rd August 2018
Yes, this have thermal paste pre-applied to the pump.
3 customers found this answer helpful.
Post Answer
4 / 5 15 reviews


3 months ago

ood cooler but fans bot so good coil wine making a right noise

Craig Stewart

3 months ago

Bought this cooler mainly for aesthetics and the fun of PC modding. I'm running an i5 9400 so heat isn't really an issue, the CPU would max out around 70c under full load with the stock cooler. With this AIO fitted and the fans at 50% it now never goes over 56c. The fan speed is important, in my setup, putting the fans to 100% only gives a 1-2c drop in temperature, but a massive increase in noise, in other applications, maybe with beefier CPUs or overclocking, the increase in airflow may be worth it, just not for me. As a bonus, removing the stock cooler, which just vents into the chassis space, with the AIO venting out the top of the chassis, I saw a 5c drop in my GPU temperature as well. Installation was straight forward enough, I have a reasonable level of PC building knowledge, but it may be difficult for a beginner. Pros: -Build quality seems good, can't comment on longevity yet, only been installed a month -Over 10c drop in CPU temperature -Looks good, RGB on the pump unit and fans Cons: -Molex connector for RGB controller, come on Cooler Master, my PSU doesn't even have a molex connector, a lot don't these days, had to buy a SATA-molex adaptor -Included fans noisy at 100%, you could easily swap these out and taking into consideration the overall price of the unit, it's only a minor gripe, but may be a factor for some


4 months ago

It was worth moving from the classic one to the one with water.I think you should see the difference with your own eyes!

Jay Fraser

4 months ago

Great product and fantastic service from ccl computers. Quick delivery too.


5 months ago

this is great and affordable product has improved my system greatly

Ian Parkinson

6 months ago

Not super easy to install but does a good enough job of keeping my I5 9600KF to a max of 70 Fahrenheit using the latest iteration of Prime 95 at stock speeds over a 3 hour period


8 months ago

Great value money


9 months ago

For the price, the ML240R was a good value as it effectively cost close to what mainstream 120mm cooling systems typically retail for. Build quality and finish of the radiator was better than expected at this price point. The twin fans were quite audible especially at higher RPMs but worked well enough and can be adjusted if connected to a motherboard header. Some of the paint on the pump housing flaked off allowing tiny amounts of light to bleed through from the internal LED - so obviously care needs to be taken during assembly. Packaging and fitting instructions were excellent making it quick to install. Fixing hardware for just about every modern motherboard socket to be accommodated. I was surprised that even socket 775 was supported by this cooler. The fans can be fitted either air flow direction or both sides of the radiator if required. The finish on the screws were of excellent quality despite the budget price. The radiator hoses are sleeved and appear durable. It should be noted that they may not be long enough if the unit is fitted inside large computer cases. Included in the box was cabling and a controller that allows the LED colour to be changed as well as mode of operation (flash, static, etc.). It is also possible to connect directly to a compatible motherboard RGB header for controlling via the BIOS or using software. In summary; great value for the price with good performance and decent aesthetics. Paint finish on pump assembly easily chipped and the clips that secure it to the motherboard mount can be a bit fiddly during installation.


July 2019

Superb little AIO I bought this as part of my set up for a new PC I was building. It sits inside my new NZXT 550 case and cools my Ryzen 2600X perfectly with almost 0 noise. I would recommend this AIO with out a doubt.


April 2019

Great cooler. Keeping Intel i7 5960X below 40"C under full load. Very quiet, worth the price.


April 2019

Low price. Difficult to install, only 2 screws to the existing mounting bracket for AMD. Keeps the CPU nice and cool at around 28 degrees idle at 100% pump speed and 30% fan speed. Adjusting the fan speed any higher makes it sound like a helicopter attempting to take off. Makes me wish I had stuck with air cooling. Not sure what all this silent fan advertising was about on the coolermaster website for this product, complete nonsense. I intend swap the RGB fans for a set of NZXT standard case fans which run faster and are much quieter. Would not recommend this product unless you are Intel and intend to swap the fans, in which case why bother with the RGB version really.

Ninja boy

January 2019

Very easy to fit, looks great and does the job perfectly while still costing half of the equivalent Corsair product. All games with average overclocking my Ryzen2 2700X does not go above 45deg C. Recommended product.

Paul Chadwick

December 2018

A fairly simple assembly job initially comes with all mountings & thermal paste easilly mounted in roof or vertically on case front . Basic RGB controller but looks good when running. Thermal performance very good CPU averaging 32c good value all round


October 2018

Works well is very efficent

Tim Mckeegan

September 2018

great addition to my rig keeps my ryzen running nicely in the green zone and lower even when running cpu/gpu intencive programs, great reusability also with fitting in the box for every platform you could think of ;)

PDF Datasheets and Manuals

Document File type File size
Product Sheet pdf
Manual pdf