Cooling · Arctic

Arctic Liquid Freezer III 420

Arctic Liquid Freezer III 420 for local AI desktops and workstations that need cool and quiet operation during long training runs.

Arctic Liquid Freezer III 420 is a Liquid AIO product from Arctic built for desktop and workstation systems that run local AI workloads. It suits model loading, dataset handling and daily creation work where cool and quiet operation during long training runs matters in a home lab or office build.

Specifications

Name	Arctic Liquid Freezer III 420
Brand	Arctic
Category	Cooling
Type	Liquid AIO
Key spec	Radiator 420 mm
Key spec	Fans 3 x 120 mm class
Key spec	Socket support AM5, AM4, LGA1851, LGA1700
Key spec	Pump with PWM control
Best for	GPU workstation; LLM inference; quiet local AI build
Specs source	Arctic product page
Last verified	2026-11-14