The ARCTIC Liquid Freezer III Pro 420 A-RGB in white is a high-performance all-in-one liquid cooler designed for enthusiasts who demand both superior thermal management and stunning aesthetics. Built with an aluminium construction and featuring a large 420mm radiator, this cooler is equipped with three 140mm fans, making it an excellent choice for high-end builds that require efficient heat dissipation. With a weight of 2.36 kg and dimensions of 458 x 138 x 68 mm, it is a substantial cooler suited for full-tower cases with ample radiator mounting space.
Advanced Fan Control and Performance
The three included 140mm fans operate within a speed range of 400 to 2500 RPM, supported by PWM control for precise, dynamic adjustments based on thermal load. With a maximum air pressure of 5.20, the fans push airflow efficiently through the dense radiator fins. The pump runs at 12V with a current draw of just 0.35 mA, keeping power consumption low while maintaining reliable coolant circulation through the 450mm tubing.
Broad Compatibility and A-RGB Lighting
The Liquid Freezer III Pro 420 supports a wide range of modern CPU sockets, including Intel LGA 1700 and 1851, as well as AMD AM4 and AM5, making it compatible with the latest processor platforms. The integrated A-RGB lighting connects via a 3-pin ARGB interface, allowing seamless synchronization with compatible motherboards and RGB ecosystems. The clean white finish adds a premium aesthetic touch, complementing modern builds with white or bright colour themes.
Product number manufacturer:
ACFRE00189A
Cooling
Energy management
Illumination
Physical characteristics
Sockets
1851, AM4, AM5, Socket 1700
Technical details
Pulse-width modulation (PWM) support:
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