ARCTIC Liquid Freezer III Pro 420 A-RGB Multi Compatible All-in-One CPU Water Cooler with A-RGB

Liquid (420 mm)

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Type Liquid (420 mm)
Fan size 3x 140 mm
sockets LGA 1700, LGA 1851, Socket AM4, Socket AM5

ARCTIC Liquid Freezer III Pro 420 A-RGB Multi Compatible All-in-One CPU Water Cooler with A-RGB is an all-in-one liquid CPU cooler with 3x 140 mm fans. Check that it supports your CPU socket and fits your cabinet. It came out in 2025.

Released: 2025-07-04

Specifications

Key specs

Type: Liquid (420 mm)
Fan size: 3x 140 mm
sockets: LGA 1700, LGA 1851, Socket AM4, Socket AM5
Released: 2025-07-04
Part number: ACFRE00185A
EAN / UPC: 0840033403023

Performance

Suitable location: Processor
Type: All-in-one liquid cooler
Fan diameter: 14 cm
Supported processor sockets: LGA 1700, LGA 1851, Socket AM4, Socket AM5
Rotational speed (min): 400 RPM
Rotational speed (max): 2500 RPM
Maximum airflow: 110 cfm
Airflow: 186 m³/h
Maximum air pressure: 5.2 mmH2O
Pulse-width modulation (PWM) support: Yes
Bearing type: Fluid Dynamic Bearing (FDB)
Pump motor speed (min): 800 RPM
Pump motor speed (max): 2800 RPM
VRM fan speed (min): 400 RPM
VRM fan speed (max): 2500 RPM
Operating temperature (T-T): 0 - 40 °C

Design

Product colour: Black
Radiator material: Aluminum
Base plate material: Copper
Number of fans: 3 fan(s)
Illumination LED: Yes
Illumination colour: Multi
LED connector type: 3-pin + 3-pin
Fan connector: 4-pin
Display type: Not applicable

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Power

LED voltage: 5 V
Pump voltage: 12 V
Pump current: 0.35 mA
Fan voltage: 12 V
Fan current: 0.35 A

Weight & dimensions

Width: 458 mm
Depth: 68 mm
Height: 138 mm
Radiator width: 13.8 cm
Radiator depth: 45.8 cm
Radiator height: 3.8 cm
Tube length: 50 cm
Tube diameter: 1.24 cm
Tube inner diameter: 6 mm
Weight: 2.36 kg

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About this product

CPU Water Coolers Outstanding cooling performance through liquid cooling. ARCTIC's Premium Liquid Freezer range offers impressively high performance at moderate prices without the complexity of conventional CPU water coolers. Completely maintenance-free, the all-in-one cooler with various models for smaller and larger cases covers all the most important current CPU sockets.

Datasheet (PDF)

Liquid Freezer III Pro 420 A-RGB Multi Compatible All-in-One CPU Water Cooler with A-RGB vs similar CPU coolers

	ARCTIC Liquid Freezer III Pro 420 A-RGB Multi Compatible All-in-One CPU Water Cooler with A-RGB	ARCTIC Liquid Freezer III Pro 420 A-RGB (White) - Multi Compatible All-in-One CPU Water Cooler	ARCTIC Liquid Freezer III 420 A-RGB Multi Compatible All-in-One CPU Water Cooler with A-RGB	ARCTIC Liquid Freezer III 420 Multi Compatible All-in-One CPU Water Cooler
Type	Liquid (420 mm)	Liquid (420 mm)	Liquid (420 mm)	Liquid (420 mm)
Fan size	3x 140 mm	3x 140 mm	3x 140 mm	3x 140 mm
sockets	LGA 1700, LGA 1851, Socket AM4, Socket AM5	LGA 1700, LGA 1851, Socket AM4, Socket AM5	LGA 1851, LGA 1700, Socket AM4, Socket AM5	LGA 1851, LGA 1700, Socket AM4, Socket AM5
Released	2025	2025	2024	—