COOLER MASTER Gen S Dual Chamber • SickleFlow Edge 120 ARGB

Cooler Master MasterLiquid 240 Atmos ARGB Liquid Cooler Black

Next-generation 240mm AIO liquid cooling engineered with Cooler Master's patented Gen S dual-chamber pump, twin SickleFlow Edge 120 ARGB PWM fans, customizable 3D-printable top cover, and whisper-quiet operation under 12 dBA for extreme gaming and workstation thermal headroom.

240mmAluminum Radiator
< 12 dBAUltra-Quiet Pump
70.7 CFMMax Fan Airflow
LGA 1851 / AM5Universal Socket
Maximum Performance & Overclocking

Precision Overclocking & Heavy Synthetic Workloads

Engineered with optimized microchannel copper fins and increased liquid flow rate to tame multi-threaded power surges on Intel Core Ultra and AMD Ryzen 9000 series processors without thermal throttling.

Silent Operation & Pro Builds

Acoustic Excellence & Clean Stealth Black Aesthetics

Loop Dynamic Bearing (LDB) fans paired with decoupled dual-chamber pump mechanics deliver near-silent thermal regulation, making it ideal for quiet creator studios and clean desk setups.

Gen S Dual-Chamber Pump Patented Dual-Chamber Architecture

Patented Dual-Chamber Architecture

Isolates heated liquid from the pump motor, accelerating heat dissipation toward the radiator while keeping pump operation below a whisper-quiet 12 dBA.

SickleFlow Edge 120 ARGB High-Pressure Aerodynamic Blades

High-Pressure Aerodynamic Blades

Dual 120mm PWM fans produce up to 70.7 CFM airflow and 3.61 mmH2O air pressure, pushing heat through dense radiator fins with minimal turbulence.

240mm Precision Radiator Optimized Heat Exchange Surface

Optimized Heat Exchange Surface

277 x 119.6 x 27.2 mm aluminum radiator engineered with high-density fin layout fits universally into standard PC cases at top or front mounting positions.

Customizable 3D Top & ARGB MasterPlus+ & MasterCTRL Ecosystem

MasterPlus+ & MasterCTRL Ecosystem

Transparent removable pump top supports 3D-printable custom inserts, combined with Addressable Gen 2 RGB LEDs synchronized via Cooler Master MasterCTRL software.

Thermal Dissipation & Acoustic Benchmarks

Comparative thermal headroom and noise levels under heavy synthetic & gaming workloads

Cooler Master ML240 Atmos ARGB (240mm AIO) 63°C Peak (Full Load)
Standard 240mm AIO Liquid Cooler 71°C Peak (Full Load)
Premium Dual-Tower CPU Air Cooler 76°C Peak (Full Load)
Standard Single-Tower 120mm Air Cooler 84°C Peak (Full Load)

Detailed Hardware Specifications

Product Name Cooler Master MasterLiquid 240 Atmos ARGB Black
Model / Part Number MLX-D24M-A25PZ-R1
Radiator Dimensions 277 x 119.6 x 27.2 mm
Radiator Material Aluminum
Pump Dimensions 84.9 x 81 x 53.15 mm
Pump Noise Level < 12 dBA
Pump Connector & Power 4-Pin PWM, 12 VDC, 3.84W
Fan Model & Quantity 2x SickleFlow Edge 120 ARGB PWM
Fan Speed Range 690 - 2500 RPM ± 10%
Fan Airflow 70.7 CFM (Max)
Fan Air Pressure 3.61 mmH2O (Max)
Fan Noise Level 27.2 dBA (Max)
Bearing Type Loop Dynamic Bearing (LDB)
Intel Socket Compatibility LGA 1851, LGA 1700, LGA 1200, LGA 1151, LGA 1150, LGA 1155, LGA 1156
AMD Socket Compatibility AM5, AM4
Lighting Type & Software Addressable Gen 2 RGB (MasterPlus+ / MasterCTRL)

Frequently Asked Questions & Store Support

What CPU sockets are supported by Cooler Master MasterLiquid 240 Atmos?
The MasterLiquid 240 Atmos includes universal mounting brackets supporting modern Intel LGA 1851, LGA 1700, 1200, 115x and AMD AM5, AM4 platforms straight out of the box.
How does the Gen S dual-chamber pump improve cooling efficiency and noise?
By isolating hot coolant from the pump motor, the Gen S dual-chamber design maximizes coolant flow and pressure onto the copper microchannels while keeping pump acoustic output below an ultra-silent 12 dBA.
Can I customize the top pump cap with my own 3D prints?
Yes! Cooler Master provides downloadable 3D templates allowing enthusiasts to design and print custom pump cap badges or figures to personalize their PC build.
What thermal compound is included with the Atmos 240?
The accessory box includes a tube of Cooler Master's premium CryoFuze thermal grease, delivering high thermal conductivity and zero electrical risk.
How do I control the Addressable Gen 2 RGB lighting?
The ARGB lighting connects directly to your motherboard's 3-pin 5V header or the included ARGB controller, fully synchronized via Cooler Master MasterCTRL or standard motherboard RGB sync software (Aura Sync, Mystic Light, RGB Fusion, Polychrome).
What CPU sockets and motherboard platforms are supported?
This cooler includes universal multi-socket mounting hardware supporting modern Intel LGA 1851, LGA 1700, 1200, 115x and AMD AM5, AM4 platforms out of the box for hassle-free installation.
Is thermal paste included or pre-applied?
Yes, this cooler comes with either pre-applied premium thermal compound on the copper cold plate or a dedicated syringe of high-conductivity thermal paste in the accessory kit.
What warranty coverage is included with this cooler?
All CPU coolers purchased at AHW Store include official authorized manufacturer warranty with direct local technical support and replacement. Details in our Warranty Policy ↗.
What payment and installment plans are available in Egypt?
We offer cash on delivery, credit cards, and flexible installment plans through ValU, Sympl, Forsa, and bank credit cards. See our Payment & Installments Guide ↗.
How fast is shipping and delivery across Egypt?
Orders are delivered within 2 to 7 business days across all Egyptian governorates in secure armored packaging (with pickup available from our 6th of October headquarters). See Shipping Policy ↗.
Can AHW Store assemble my complete custom gaming or workstation PC with this cooler?
Yes! Our certified hardware engineers can assemble, cable-manage, stress-test, and optimize your complete custom gaming or creator PC. Explore our Custom PC Builder ↗.