ARCTIC Liquid Freezer III Pro 420 A-RGB CPU Liquid Cooler, White

Product Name

• Arctic Liquid Freezer III Pro 420 A-RGB



Overview

• Wide compatibility CPU cooler with A-RGB lighting effects

• Compatible with Intel Alder Lake and Raptor Lake LGA1700 processors

• Compatible with the new socket LGA1851 of Arrow Lake

• Compatible with AMD AM5 and AM4



Features

• Multi-compatible with most common Intel and AMD sockets

• New P14 Pro A-RGB fan: quieter and more powerful at low speeds, with greater performance reserves under load for maximum cooling without compromise

• 38 mm radiator improves heat dissipation and holds more liquid than conventional 27 mm radiators

• Requires at least 63 mm of clearance for installation

• Two connection cables provide two control options:

• Splitter cable allows the pump, VRM fan, and radiator fans to be controlled separately

• All-in-one cable allows the pump, VRM fan, and radiator fans to be synchronized via a single PWM signal

• Offset Mounting for Intel and AMD shifts the cold plate to the CPU hotspot for more efficient heat transfer

• Intel Contact Frame provides optimized contact pressure distribution for longer CPU lifespan and improved heat dissipation

• Integrated VRM Fan: PWM-controlled fan lowers the voltage regulator temperature, ensuring stable performance

• Includes MX-6 Thermal Paste: apply in a cross pattern; the water pump’s cold plate distributes the paste evenly

• New A-RGB fans allow for perfectly matched, multi-color lighting effects

• Advanced A-RGB technology and customizable LEDs allow you to design your system with your own look



Note

• Some motherboards are incompatible with the Liquid Freezer III Pro due to oversized SSD coolers in the M.2_1 slot

• Compatibility information: https://support.arctic.de/lf3-compatibility



Specifications

• Pump speed: 800 - 2800 RPM

• Pump voltage / current: 12V DC / 0.35A

• Plate material: copper

• Tube length: 450 mm

• Tube diameter: outer 12.4 mm, inner 6.0 mm

• VRM fan speed: 400 - 2500 RPM

• VRM voltage / current: 12V DC / 0.35A

• Thermal paste: MX-6 (0.8g)

• Fan: 3x P14 Pro A-RGB

• Fan speed: 400 - 2500 RPM

• Air flow: 110 CFM / 186 m³/h

• Static pressure: 5.2 mm H2O

• Connector: 4-Pin PWM+ 3-Pin A-RGB

• Bearing: Fluid dynamic bearing

• Fan voltage / current: 12V DC / 0.35A

• LED: 12x A-RGB Gen2

• RGB voltage / current: 5V DC / 0.40A

• Dimensions: 458 x 138 x 38 mm

• Weight: 2358 g

• Color: white body, optional lighting



Compatibility

• AMD AM4

• AMD AM5

• Intel LGA1851

• Intel LGA1700

• Intel 1700



Warranty

• 6 years