No featured offers available Learn more

No featured offers available

We feature offers with an Add to Cart button when an offer meets our high standards for:

  • Quality Price,
  • Reliable delivery option, and
  • Seller who offers good customer service
“No featured offers available” means no offers currently meet all of these expectations. Select See All Buying Options to shop available offers.

Select delivery location
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.

Cooler Master MasterLiquid 240 CPU Cooler, All-in-One Liquid Cooler, Dual Chamber Design, 120mm x 2 MasterFan Air Balance Fans

4.4 4.4 out of 5 stars 638 ratings

To see product details, add this item to your cart. You can always remove it later.
ML 240
Brand Cooler Master
Voltage 12 Volts
Wattage 5
Cooling Method Water
Compatible Devices Desktop
Noise Level 30 dB
Material Rubber

About this item

  • Dual Dissipation– Our low-profile dual chamber pump bumps up performance and durability over our last-gen single chamber pump designs.
  • Library Quiet– A sturdy build keeps vibrations and rattle to nearly inaudible levels.
  • Push-Pull Fans– To avoid dynamic losses, the dual MasterFan setup provides added pressure to push hot air through the radiator.
  • Sleeved FEP– Underneath sleek black sleeves, FEP material beats rubber tubing in keeping liquid where it belongs– inside the cooler.
  • AMD Ryzen AM4 Compatible.2 Year Warranty
Bake something bright
Get ready for Easter Learn more

Compare with similar items

This Item
Cooler Master MasterLiquid 240 CPU Cooler, All-in-One Liquid Cooler, Dual Chamber Design, 120mm x 2 MasterFan Air Balance Fans
Cooler Master MasterLiquid 240 CPU Cooler, All-in-One Liquid Cooler, Dual Chamber Design, 120mm x 2 MasterFan Air Balance Fans
Recommendations
CoolerMaster MasterLiquid ML240L ARGB V2, Close-Loop AIO CPU Liquid Cooler, Gen3 Dual Chamber Pump, 240mm Radiator, SickleFlow 120 PWM ARGB, AMD Ryzen AM5/AM4, Intel LGA1700/1200 (MLW-D24M-A18PA-R2)
dummy
MSI MAG CoreLiquid 240R V2 - AIO ARGB CPU Liquid Cooler - Rotating Cap Design - LGA 1700 Ready - 240mm Radiator - Dual 120mm ARGB PWM Fans
dummy
NZXT Kraken 240 - RL-KN-240-B1 - 240mm AIO CPU Liquid Cooler - Customizable 1.54" Square LCD Display for Images, Performance Metrics and More - High-Performance Pump - 2 x F120P Fans - Black
dummy
Corsair H100x RGB Elite Liquid CPU Cooler For Desktop - 32 Dynamic LEDs SP120 Series PWM Fans with AirGuide Technology Intel® LGA 1700, 1200, 115X, 2066, AMD® AM5/AM4 Sockets Black, 240mm AIO
dummy
Coolerguys Single 120mm Fan Cooling Kit
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Price-34% $65.98
List:$99.99
-21% $87.43
List:$109.99
-13% $121.99
List:$139.99
$99.99$28.95
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Tuesday, Apr 2
Get it as soon as Monday, Apr 1
Get it Apr 2 - 4
Customer Ratings
Noise level
3.3
4.3
3.9
4.1
4.5
Easy to install
3.3
4.2
4.1
4.0
3.7
Mounting system
4.3
4.1
3.2
4.1
Value for money
4.2
4.3
4.1
4.1
Sold By
SCORE MIGHTY
Amazon.com
Amazon.com
Amazon.com
Coolerguys
cooling method
Water
Water
Water
Water
Water
Air
compatible devices
Desktop
Desktop
Radiator
Desktop
Desktop
Desktop
air flow capacity
78.73 cubic feet per minute
47.74 cubic feet per minute
46 cubic feet per minute
max rotational speed
1800 rpm
1800 rpm
2800 rpm
1.5 rpm
1200 rpm
noise level
30 decibels
8 decibels
16.7 decibels
30.6 decibels
28 decibels
20 decibels
material
Rubber
Aluminum
Ceramic
Rubber
Copper
Polybutylene Terephthalate
wattage
2.36 watts
4.08 watts
12 watts
1 watts

What's in the box

  • "MasterLiquid 240 Fan x 2 / Accessories Boxes User Manual / Warranty"
  • Looking for specific info?

    Product information

    Technical Details

    Collapse all

    Additional Information

    Warranty & Support

    Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

    Feedback

    Cooler

    Cooler Master MasterLiquid 240 CPU Cooler, All-in-One Liquid Cooler, Dual Chamber Design, 120mm x 2 MasterFan Air Balance Fans


    Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

    Where did you see a lower price?

    /
    /
    /
    /
    Please sign in to provide feedback.

    From the manufacturer

    MasterLiquid 240

    A New Way to Flow

    The MasterLiquid all-in-one liquid CPU cooler is custom, inside and out. Our low-profile dual chamber pump outperforms its single chamber predecessors in heat transfer. The MasterFan Air Balance fans work with our characteristically sturdy build quality to keep this thing as quiet as a library. Kink-free, factory-sealed FEP tubing now comes sleeved for a premium look. Screw it in and experience the quiet muscle of liquid cooling without ever worrying about refills or maintenance. Enjoy the work of decades of thermal innovation.

    • Exclusive In-House Design
    • Dual Chamber Pump
    • Library Quiet
    • Push-Pull Fans
    • Sleeved FEP Tubing
    • Easy Installation
    MasterLiquid 120 MasterLiquid Pro 120 MasterLiquid 240 MasterLiquid Pro 240
    MasterLiquid 120 MasterLiquid Pro 120 MasterLiquid 240 MasterLiquid Pro 240
    Customer Reviews
    4.4 out of 5 stars
    638
    4.2 out of 5 stars
    120
    4.4 out of 5 stars
    638
    3.9 out of 5 stars
    131
    CPU Socket Intel LGA 2011-v3 / 2011 / 1366 / 1151 / 1150 / 1156 / 1155 / 775 socket AMD AM4 / AM3+ / AM3 / AM2+ / AM2 / FM2+ / FM2 / FM1 socket Intel LGA 2011-v3 / 2011 / 1151 / 1150 / 1155 / 1156 / 1366 / 775 socket AMD AM3+ / AM3 / AM2+ / AM2 / FM2+ / FM2 / FM1 socket Intel LGA 2011-V3 / 2011 / 1366 / 1151 / 1150 / 1156 / 1155 / 775 socket AMD FM2+ / FM2 / FM1 / AM4 / AM3+ / AM3 / AM2+ / AM2 socket Intel LGA 2011-v3 / 2011 / 1151 / 1150 / 1155 / 1156 / 1366 / 775 socket AMD AM3+ / AM3 / AM2+ / AM2 / FM2+ / FM2 / FM1 socket
    Radiator Dimensions 6.2 x 4.7 x 1.1 in. (157 x 119.6 x 27 mm) 6.1 x 4.7 x 1.5 in. (145 x 118.5 x 38 mm) 10.9 x 4.71 x 1.06 in. (277 x 119.6 x 27 mm) 10.83 x 4.67 x 1.06 in. (275 x 118.5 x 27 mm)
    Radiator Material Aluminum Aluminum Aluminum Aluminum
    Pump Dimensions 3.37x 2.76 x 1.93 in. (85.6 x 70 x 49 mm) 3.7 x 2.68 x 2.2 in. (93.98 x 68.07 x 55.8 mm) 3.37 x 2.76 x 1.93 in. (85.6 x 70 x 49 mm) 3.7 x 2.68 x 2.2 in. (93.98 x 68.07 x 55.8 mm)
    Pump Noise Level <15 dBA <12 dBA <15 dBA <12 dBA
    Pump Rated Voltage 12 VDC 12 VDC 12 VDC 12 VDC
    Pump Power Consumption 6.0W 6.0W 6.0W 6.0W
    Pump Life Expectancy 70,000 (MTTF) 175,000 (MTTF) 70,000 (MTTF) 175,000 (MTTF)
    Pump LED White Logo LED Blue LED White Logo LED Blue LED
    Fan Dimensions 4.7 x 4.7 x 1 in. (120 x 120 x 25 mm) 4.7 x 4.7 x 1 in. (120 x 120 x 25 mm) 4.7 x 4.7 x 1 in. (120 x 120 x 25 mm) 4.7 x 4.7 x 1 in. (120 x 120 x 25 mm)

    Product Description

    The MasterLiquid all-in-one liquid CPU cooler is custom, inside and out. Our low-profile dual chamber pump outperforms its single chamber predecessors in heat transfer. The MasterFan Air Balance fans work with our characteristically sturdy build quality to keep this thing as quiet as a library. Kink-free, factory-sealed FEP tubing now comes sleeved for a premium look. Screw it in and experience the quiet muscle of liquid cooling without ever worrying about refills or maintenance. Enjoy the work of decades of thermal innovation.

    Product guides and documents

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    638 global ratings

    Customers say

    Customers like the quality, value, and appearance of the electronic component fan. For example, they mention that it cools the CPU well, idle temps are pretty stable, and that it's awesome for the money. That said, opinions are mixed on the noise and ease of installation.

    AI-generated from the text of customer reviews

    27 customers mention24 positive3 negative

    Customers like the quality of the electronic component fan. They say it's a good cooler that keeps the CPU at a steady temperature. The idle temps are pretty stable at 20-22 degrees C (0-4 degrees above room temperature). The fans spin at fewer speed, making it quieter. Overall, customers are satisfied with the performance and quality of this product.

    "Like it a lot as it keeps cpu cool.Bought the Masterliquid 240 as an upgrade for the budget cm hyper 212...." Read more

    "...Idle temps are pretty stable at 20-22 degrees c (0-4 degrees above room temp), and under load it rarely gets above 50...." Read more

    "...MasterLiquid 120 is awesome at keeping my AMD FX 8350 at a very cool 12C at idle and never goes over 53C at full load...." Read more

    "...with third-party units but the Cooler Master 120mm fans are pretty good quality, with nice touches such as anti-vibration pads...." Read more

    7 customers mention7 positive0 negative

    Customers appreciate the value of the electronic component fan. They say it's awesome for the money, a great cooler for how cheap it is, and cheaper than replacing the memory cards.

    "I got it on sale for $64.99, but even at $87.99 it's a good price...." Read more

    "...Honestly just a great cooler for how cheap it is (got it on sale for 70)" Read more

    "...This was cheaper than replacing the memory cards AND it was way easier to install than the radiator type coolers I've installed in the past...." Read more

    "good price and good cooler." Read more

    5 customers mention5 positive0 negative

    Customers are satisfied with the appearance of the electronic component fan. They mention that it looks well, clean, and tidy. The fan has nice touches, such as anti-vibration pads, and it's easy to install. It keeps their Ryzen 1700 X nice and cool.

    "...but the Cooler Master 120mm fans are pretty good quality, with nice touches such as anti-vibration pads...." Read more

    "...Included pics of the screws I used to make it work, it looks clean and tidy still, just would have preferred to keep it all the same...." Read more

    "...This cooler however was a dream to install and keeps my Ryzen 1700 X nice and cool. Was a great purchase." Read more

    "...Fits in most cases very well and looks great." Read more

    28 customers mention14 positive14 negative

    Customers are mixed about the noise of the electronic component fan. Some mention that it's extremely quiet, with the pump making only audible noises when the fans are running on full. However, others say that it is very noisy, with grinding noises from the pump and ticking noises coming from the cooler.

    "...The LED on the pump is bright, but not too bright, and the pump is only audible if you really listen up close...." Read more

    "...For noise level, the fans are almost silent at 700rpm. The pump makes some extra noise but can be ignored once used to it...." Read more

    "...The acoustics are superb because neither the AIO pump nor the radiator fans need to run at 100% even during a Handbrake encode or CPU-Z stress..." Read more

    "...Full RPM and a constant loud "wrrrrrrrr" in the background...." Read more

    9 customers mention6 positive3 negative

    Customers are mixed about the ease of installation of the electronic component fan. Some mention that it's extremely easy to install, while others say that it was impossible to install and tough to put on.

    "For the most part, install was a breeze. Installing the rad was a bit of a struggle, as there were only 8 of the long screws...." Read more

    "...doing, since the manual only has pictures, making it hard to understand certain instructions...." Read more

    "...This was cheaper than replacing the memory cards AND it was way easier to install than the radiator type coolers I've installed in the past...." Read more

    "...The fans were easy to install to the radiator. The radiator has an anti-vibration pad. I haven't heard the pump run and I have barely heard the fans...." Read more

    4 customers mention0 positive4 negative

    Customers are dissatisfied with the pump. They mention that the fins were bent, and the pump was not functional. Some say that the pump arrived dead or broken.

    "...Not only was the pump broken (I've tried in every fan slot and cannot get a reading for RPM.)..." Read more

    "Pump doesn't work as well as advertised. Actually, it doesn't work at all...." Read more

    "...the fans worked fine but the radiator fins were bent and the pump was not functional as it was tested in 2 systems" Read more

    "...testing on two separate motherboard only conclusion was that the pump arrived dead...." Read more

    DOA ,Broken Pump, Awful Support, Waste of Time.
    1 Star
    DOA ,Broken Pump, Awful Support, Waste of Time.
    This is the worst purchase I have ever made on Amazon. When it arrived (see pictures) I was worried something would be wrong as it looks directly like a defective product that was returned then shipped out again without even testing. I'm sure once I return this, some sucker will purchase it again, only to fall into the same wasteful routine of myself.Not only was the pump broken (I've tried in every fan slot and cannot get a reading for RPM.) I spent a good three hours fitting together parts that could have been assembled at the factory. After a good 3 hours of trying to adjust my motherboard, screws, and read through whatever rigged up asinine product manual drawn by a caveman from before the advent of Christ that was given to me. I finally got it installed. Turned my on PC. Suddenly in the BIOS I'm at a toasty 70C trying to plug the pump into a fan slot to get a reading (what a waste of time!!)After reading through several, also just as awful, help topics on Cooler Master's forums I sent in a help ticket. That's right folks. In the year 2020 when you pay $100 for a product you don't even get the option to talk to a live representative. You have to enter a ticket queue waiting days for someone to reply. I don't have days, I need to use my computer for work So I spent another 30 minutes taking this broken hub of scrap off my PC. I decided to put my old fan back on. It didn't take me anywhere near close to 3 hours of pure frustration like this product did. I have to say, I will NEVER purchase another product from COOLER MASTER. I would just assume bury my money in the ground and wait for it to grow into a money tree.As an added bonus for their awful support I don't know if someone wasn't competent to renew the domain 'coolermaster.force.com' but every help topic forum you'll end up in getting a response saying "go check out this nonexistent domain for the answer."To reiterate and put things bluntly. Don't buy this, don't buy a COOLER MASTER product ever, if you want to waste your time and money that badly PM me and I'll give you my BTC address.
    Thank you for your feedback
    Sorry, there was an error
    Sorry we couldn't load the review

    Top reviews from the United States

    Reviewed in the United States on October 13, 2017
    Color: ML 240Verified Purchase
    One person found this helpful
    Report
    Reviewed in the United States on January 14, 2018
    Color: ML 240Verified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on May 21, 2019
    Color: ML 120Verified Purchase
    Reviewed in the United States on November 1, 2020
    Color: ML 240Verified Purchase
    Reviewed in the United States on September 19, 2020
    Color: ML 240Verified Purchase
    Customer image
    5.0 out of 5 stars Okay but a little loud
    Reviewed in the United States on September 19, 2020
    Its good the pump don't make too much noise just the fans when they are running on full but so far i have been using it on 3700x keeps it fairly cool like 62c at max when i m gaming i would say that is on precision boost (4.35 ghz). Just that if u like u can add ur own fans on it 2x 120mm to make it more quieter
    Images in this review
    Customer image
    Customer image
    Reviewed in the United States on September 6, 2019
    Color: ML 240Verified Purchase
    Reviewed in the United States on November 4, 2020
    Color: ML 240Verified Purchase
    Customer image
    3.0 out of 5 stars Keeps it cool but fans are loud.
    Reviewed in the United States on November 4, 2020
    This cooler keeps the CPU and a steady temperature, and it hasn't throttled at all. Make sure to put on quite a good amount of thermal paste, since if you put too little (like I initially did), the CPU will throttle. It would be nice if the instructions had some words in them to understand what you're doing, since the manual only has pictures, making it hard to understand certain instructions.

    The fan speed and noise at idle is manageable, but right when you go above 50% load, the fans are cranking. Full RPM and a constant loud "wrrrrrrrr" in the background. Even with my headphones on, I seriously think it's someone mowing the law or blowing leaves outside my house. I recommend ordering replacement 120mm fans for the raditator.
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    Reviewed in the United States on December 30, 2017
    Color: ML 120Verified Purchase

    Top reviews from other countries

    Translate all reviews to English
    Marcel
    5.0 out of 5 stars ryzen 5 1600x 5ghz unter 55°C
    Reviewed in Germany on January 20, 2018
    Color: ML 240Verified Purchase
    vincent
    5.0 out of 5 stars Bon produit
    Reviewed in France on September 28, 2017
    Color: ML 240Verified Purchase
    Christopher Kennan
    5.0 out of 5 stars Fans are beautifully
    Reviewed in the United Kingdom on June 23, 2017
    Color: ML 120Verified Purchase
    2 people found this helpful
    Report
    trm
    5.0 out of 5 stars Really good basic aio with giod performance
    Reviewed in the United Kingdom on February 17, 2018
    Color: ML 240Verified Purchase
    2 people found this helpful
    Report
    Skyline
    5.0 out of 5 stars Excellent !
    Reviewed in France on November 1, 2017
    Color: ML 120Verified Purchase
    5 people found this helpful
    Report