Intel/AMD, VRM Fan, 240 mm, 690-2500 RPM, 141.4 CFM, 3.61 mmH2O, 36 dB, 7-pin PWM+ARGB, 12 VDC, 3400 RPM, 1.41 kg, Black

Key Features

  • VRM Fan for enhanced cooling experience
  • SickleFlow Edge ARGB fans​
  • Ultra-low profile pump design​
  • Quick and easy installation​

Description

MasterLiquid Atmos II VRM Fan

MASTERLIQUID ATMOS II VRM FAN

Introducing Cooler Master’s all-new Atmos II VRM Fan CPU cooler, designed to elevate your cooling experience. The MasterLiquid Atmos II VRM Fan enabling users to achieve next-level cooling performance. The low-profile pump design makes it ideal for fitting into compact cases. With exceptional cooling performance, quieter operation, and the Atmos II VRM Fan delivers the perfect blend of performance, customization, and silence. Make it yours with the MasterLiquid Atmos II VRM Fan.

VRM FAN

The VRM fan module cools motherboard hot zones with airflow in six directions. It can reduce temperatures by up to 10.2°C*, to improve both stability and performance.

*Tested by Cooler Master Lab.

Precision VRM Cooling

Validated by Cooler Master Lab, the VRM fan delivers targeted cooling, reducing temperatures by up to 10.2°C across critical components for enhanced performance and stability.

DUAL CHAMBER DESIGN

Patented design

Our latest patented dual chamber design has been refined for enhanced cooling synergy. The new design increases water pressure and optimizes water flow directly to CPU hot spot.

Improved Quality

Fully automated production and assembly of the pump with fully recorded production history.

Tough. Reliable. Built to Endure.

Engineered with PPS and fiberglass, the MasterLiquid Atmos II pump housing delivers industrial-grade strength, exceptional heat resistance, and unmatched durability—designed for builders who demand long-lasting, high-performance cooling. It also passes extreme testing at 70°C for 3,000 hours and 120 °C for 12 hours*, ensuring reliable performance under the harshest conditions.

*Tested by Cooler Master Lab using only the liquid cooling module. Results may vary by system and conditions.

PRE-INSTALLED SICKLEFLOW EDGE ARGB FAN

High RPM fan with low vibration ensure strong cooling with minimal noise, while the dual color options complement different system aesthetics.

ULTRA-LOW PROFILE PUMP DESIGN

The flat design allows installation in cases of different sizes while maintaining strong performance.

QUICK AND EASY INSTALLATION

A quick-mount kit ensures compatibility with mainstream processor sockets and the pre-installed fans simplify setup. ​

Offset Mounting Brackets for LGA 1851

Due to the varying CPU hotspots across different platforms, there are corresponding mounting bracket solutions tailored for each. We recommend you use the included offset mounting brackets for LGA 1851*, which precisely dissipate 4°C of heat from the center of the CPU.**

*Please check whether your motherboard is compatible with this offset bracket.

**Tested by Cooler Master Lab.

INCLUDED CRYOFUZE
THERMAL PASTE

TUBE CLIPS INCLUDED

Specifications

Performance
Suitable location Processor
Fan connector 7-pin
Pulse-width modulation (PWM) support Yes
Bearing type Loop Dynamic Bearing (LDB)
Type Liquid cooling kit
Fan diameter 12 cm
Supported processor sockets LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1156 (Socket H), LGA 1200 (Socket H5), LGA 1700, LGA 1851, Socket AM4, Socket AM5
Maximum airflow 141.4 cfm
Airflow 240.35 m³/h
Number of fans 2 fan(s)
Quantity per pack 1 pc(s)
Pump connector 3-pin + 4-pin
Fan noise level (max) 36 dB
Pump noise level 25 dB
Pump motor speed 3400 RPM
Fan static pressure 3.61 mmH2O
Fan speed (min) 690 RPM
Fan speed (max) 2500 RPM
Pump's mean time to failure (MTTF) 210000 h
Fan's mean time to failure (MTTF) 160000 h
Design
Fan connector 7-pin
Number of fans 2 fan(s)
Material Aluminium
Illumination colour Multi
Product colour Black
Illumination LED Yes
Radiator material Aluminum
Technical details
Type Liquid cooling kit
Fan diameter 12 cm
Supported processor sockets LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1156 (Socket H), LGA 1200 (Socket H5), LGA 1700, LGA 1851, Socket AM4, Socket AM5
Maximum airflow 141.4 cfm
Airflow 240.35 m³/h
Number of fans 2 fan(s)
Material Aluminium
Fan connector 7-pin
Illumination LED Yes
Warranty period 6 year(s)
Ports & interfaces
Fan connector 7-pin
Pump connector 3-pin + 4-pin
Power
Safety current 0.8 Ah
Fan power consumption 6 W
VRM fan power consumption 2 W
Pump power consumption 3.84 W
Pump voltage 12 V
Fan voltage 12 V
Fan current 0.5 A
Colour
Product colour Black
Weight & dimensions
Fan dimensions (W x D x H) 122 x 241 x 26.5 mm
Package depth 292 mm
Package width 211 mm
Package height 136 mm
Package weight 2.26 kg
Weight 1.41 kg
Radiator width 11.9 cm
Radiator depth 27.7 cm
Radiator height 2.7 cm
Tube length 35 cm
Pump width 8.7 cm
Pump depth 9.25 cm
Pump height 3.9 cm
Packaging data
Package depth 292 mm
Package width 211 mm
Package height 136 mm
Package weight 2.26 kg
Package type Box
Indication
Illumination colour Multi
Packaging content
Package type Box
Mounting kit Yes
Other features
Safety current 0.8 Ah
Pump connector 3-pin + 4-pin
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