ARCTIC COOLING 

ARCTIC COOLING Arctic Freezer 4U-M Rev. 2 Multicompatible 4U Single Tower CPU Cooler - ACFRE00133B

Mfg Part Number:  ACFRE00133B  
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Price: $82.34
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Last Updated: Sep 12, 2025
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Versatile Multi-Compatible Server Cooler

The Freezer 4U-M Rev. 2 stands as a multi-compatible server cooler, boasting an expansive contact surface and an enhanced mounting mechanism. It now offers compatibility with a wide range of Intel and AMD server processors, including Intel's LGA 4189 and LGA 4677, as well as AMD's SP6, sTR5, SP3, TR4, sTRX4, and sWRX8 sockets. It also supports the Ampere Altra LGA4926. Remarkably, despite its impressive cooling capabilities, the Freezer 4U-M Rev. 2 consumes a mere 2.88 watts, ensuring exceptional efficiency in cooling even the most powerful processors with up to 64 cores and a TDP of up to 350 watts.

RAM Compatibility and Clearance

The Freezer 4U-M Rev. 2 offers a generous 53 mm of clearance for memory, allowing the use of RAM modules with moderate heatsinks. This space facilitates efficient airflow and ensures compatibility with various types of RAM.

Compact Design and Dual Socket Compatibility

With an optimised installation height of only 145 mm, it fits into both classic 4U server racks and most consumer 4U cases available on the market. The Freezer 4U-M Rev. 2 features a compact design with dimensions of just 156 x 124 mm. This also makes it suitable for dual-socket motherboards. To adjust the airflow direction if required, the fans can be easily swapped over.

Powerful Fans in Push-Pull Configuration

The installed PWM fans benefit from all the advantages of the award-winning P series. Designed for static pressure, the fans are ideal for the Freezer 4U-M Rev. 2's high fin density and provide efficient heat dissipation in push-pull mode, even in power-hungry applications. Especially office workstations benefit from the quiet fans. The dual configuration also allows for inherent redundancy and protects the system from total shutdown caused by heat.

Designed for continuous operation

Both fans of the Freezer 4U-M Rev. 2 are equipped with dual ball bearings, which allows for 24/7 continuous operation without the slightest compromise in performance. This type of bearing is much more resistant to contamination and wear caused by high temperatures than conventional sleeve bearings or Fluid-Dynamic bearings and is therefore the perfect choice if you want to ensure fault-free continuous operation.

Premium Thermal Paste Included

The Freezer 4U-M Rev. 2 comes with MX-6 thermal paste. ARCTIC's Ultimate Performance thermal paste reduces the heat build-up between the heat spreader of the CPU and the cooler. The thermal paste is neither conductive nor capacitive and therefore absolutely safe to use.

Main Specification
General Information
Manufacturer Arctic Cooling
Manufacturer Part Number ACFRE00133B
Manufacturer Website Address http://www.arctic-cooling.com
Brand Name Arctic
Product Line Freezer 4U-M
Product Name Freezer 4U-M Rev. 2
Product Type Cooling Fan/Heatsink
Fan Information
Number of Fans 2
Fan Bearing Type Dual Ball Bearing
Fan Speed (Min) 400 rpm
Fan Speed (Max) 2300 rpm
Maximum Airflow 71.90 CFM
Noise Levels (A-Weighted) 40 dB(A)
Maximum Air Pressure 3.3mmH2O
Heatsink Information
Number of Heat Pipes 8
Compatible Intel Socket LGA-4189
Compatible Intel Socket LGA-4710
Compatible Intel Socket LGA-4677
Compatible AMD Socket SP3
Compatible AMD Socket SP6
Compatible AMD Socket sWRX8
Compatible AMD Socket TR4
Compatible AMD Socket sTRX4
Compatible AMD Socket sTR5
Interfaces/Ports
Connectors 4-Pin
Power Description
Rated Current 120 mA
Physical Characteristics
Heatsink Material Aluminum
Maximum Fan Diameter 4.72"
Height 5.7"
Width 6.1"
Weight (Approximate) 2.81 lb
Miscellaneous
Package Contents
  • Freezer 4U-M Rev. 2
  • Premium Thermal Paste
Features Dissipates the Heat
Application/Usage Processor
Application/Usage CPU
Application/Usage Server
Application/Usage Motherboard
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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