ARCTIC Liquid Freezer III Pro 420 (ACFRE00181A)

This liquid cooling system is primarily aimed at users who prioritize maximum cooling performance without distracting lighting. The efficiency of the ARCTIC Liquid Freezer III Pro 420 is based on a large 420 mm aluminum radiator with 38 mm thickness. This solution increases the total volume of coolant and the heat-dissipating surface area, allowing the system to handle substantial thermal loads.

The radiator is ventilated by three 140 mm P14 Pro fans that generate high static pressure (5.2 mm H2O) and airflow up to 110 CFM, which is critical for effective operation with dense fin stacks. The water block design incorporates several engineering solutions to improve heat transfer: an additional VRM fan for active cooling of the motherboard’s VRM area, an offset mounting layout for optimal coverage of modern CPU hotspots, and a special contact frame for Intel sockets that distributes clamping force evenly. Installation is simplified by pre-routed fan cables integrated into the sleeving of the tubes, which helps keep the interior of the case neat.