Description
ARCTIC Freezer 4U-M Rev.2 Dual 120mm CPU Air Cooler
ACFRE00133B
The ARCTIC Freezer 4U-M Rev.2 (ACFRE00133B) is a high-performance 4U rack-mount compatible CPU air cooler engineered for demanding server and workstation environments. Designed specifically for rack chassis and space-restricted systems, it delivers powerful airflow and thermal efficiency while maintaining reliable, long-term operation.
Equipped with two 120mm PWM fans in a push-pull configuration, the cooler generates strong, directed airflow through its dense aluminium fin stack. This setup significantly improves heat dissipation under sustained loads — making it ideal for multi-core CPUs running virtualization, rendering, or server workloads.
Four direct-touch copper heat pipes efficiently transfer heat from the CPU to the heatsink array, while ARCTIC’s pre-applied MX-4 thermal compound ensures optimal thermal contact out of the box. The result is dependable cooling performance tailored for professional and enterprise builds.
With robust construction and ARCTIC’s long-standing reliability, the Freezer 4U-M Rev.2 is purpose-built for 24/7 operation environments.
Why It’s a Great Choice
True 4U Rack Solution – Designed specifically for 4U server chassis, ensuring proper clearance and airflow alignment in rack environments.
Dual 120mm Push-Pull Cooling – Two 120mm PWM fans dramatically improve airflow through the heatsink, providing stable cooling under sustained heavy loads.
Built for 24/7 Workloads – Ideal for servers, render nodes, and professional systems where reliability and consistent thermal performance are critical.
Efficient Heat Transfer – Four direct-touch copper heat pipes quickly move heat away from the CPU, maintaining stable operating temperatures.
Easy Installation – Includes pre-applied MX-4 thermal compound, reducing setup time and ensuring proper contact immediately.
Long-Term Reliability – Backed by ARCTIC’s industry-leading 6-year warranty, making it a dependable choice for enterprise and workstation deployments.
Specifications:
| Specification | Details |
|---|---|
| Brand | ARCTIC |
| Model | Freezer 4U-M Rev.2 |
| SKU | ACFRE00133B |
| Cooler Type | Air CPU Cooler (4U Rack Compatible) |
| Fan Size | 2× 120mm PWM Fans |
| Fan Speed | 400 – 2300 RPM |
| Bearing Type | Fluid Dynamic Bearing |
| Heat Pipes | 4× Copper Direct-Touch |
| Heatsink Material | Aluminium |
| Thermal Paste | MX-4 (Pre-Applied) |
| Connector | 4-Pin PWM |
| Airflow Design | Push-Pull Configuration |
| Noise Level | Optimised for server environments |
| Application | Rack Servers / Workstations |
| Warranty | 6 Years |




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