The ARCTIC Liquid Freezer III Pro 420 is a high-end AIO liquid cooling solution engineered for enthusiasts, gamers, and creators who demand maximum thermal performance and quiet operation. Featuring a 420 mm radiator with three optimized ARCTIC fans, this arctic liquid freezer iii pro 420 delivers exceptional heat dissipation for powerful CPUs under heavy gaming or multi-threaded workloads. Compatible components and upgrades are available at Quantum Technology.

Designed with a powerful integrated pump and an efficient liquid loop, the Liquid Freezer III Pro 420 excels at maintaining low temperatures while minimizing noise. Its advanced thermal engineering includes a dedicated VRM fan that cools motherboard power delivery areas, further enhancing stability and performance during extended use. This arctic liquid freezer iii pro 420 cooler is ideal for high-end desktop builds, overclocked systems, and workstations.

Specs

• Brand: ARCTIC

• Model: Liquid Freezer III Pro 420

• Type: All-in-One (AIO) Liquid Cooler

• Radiator Size: 420 mm

• Cooling Fans: 3× 140 mm ARCTIC high-airflow fans

• Fan Speed Range: Approx. low to high RPM (PWM-controlled)

• Fan Connector: 4-pin PWM

• Pump Type: Integrated high-efficiency pump with low noise

• Liquid Loop: Pre-filled, maintenance-free

• VRM Cooling: Integrated VRM fan for motherboard cooling

• Compatibility:

  • Intel: LGA1700 / LGA1200 / LGA115X / LGA2066

  • AMD: AM5 / AM4 / (check full list based on exact socket support)

• RGB Lighting: No RGB (focus on performance)

• Tubing: Premium sleeved tubes

• Installation: Tool-free bracket system

• Warranty: Standard ARCTIC warranty