ARCTIC

ARCTIC Liquid Freezer III Pro 420 - AIO CPU Cooler,3 x 140 mm Water Cooling

Name: ARCTIC Liquid Freezer III Pro 420 - AIO CPU Cooler,3 x 140 mm Water Cooling
Brand: ARCTIC
SKU: B0DPHQ1353

Status: ARCTIC Liquid Freezer III Pro 420 - AIO CPU Cooler: Unavailable on Amazon as of 2026-10-06 22:21 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The ARCTIC Liquid Freezer III Pro 420: 420 mm radiator with three 140 mm P14 PRO fans for high-TDP CPUs; main trade-off: 420 mm radiator needs a case with 420 mm mounting clearance.

Unavailable on Amazon as of 2026-10-06 22:21 UTC

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Currently unavailable on Amazon. Not the same product — an in-stock alternative:

Similar: ARCTIC Liquid Freezer III Pro 420 A-RGB - AIO… — $89.79 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $89.79

Original listing (currently unavailable) → Compare to similar cooling & fans

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-06

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ 420 mm radiator with three 140 mm P14 PRO fans for high-TDP CPUs
✓ Thick 38 mm radiator adds cooling surface vs standard 27 mm AIOs
✓ Integrated VRM fan actively cools motherboard voltage converters
✓ Included LGA1851/LGA1700 contact frame evens out contact pressure
✓ Single visible cable — fan PWM wiring hidden in the hose sheathing

Cons

✗ 420 mm radiator needs a case with 420 mm mounting clearance
✗ 38 mm-thick radiator can clash with tall RAM or top-mounted fans
✗ No RGB lighting on the pump or P14 PRO fans
✗ Integrated hose cabling limits fan-cable rerouting flexibility

SpecPicks Verdict

SpecPicks scored ARCTIC Liquid Freezer III Pro 420 using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. ARCTIC's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

CONTACT FRAME FOR INTEL LGA1851 | LGA1700: Optimized contact pressure distribution for longer CPU life and better heat dissipation
ARCTIC's P14 PRO FAN: More power at any speed - more powerful and quieter than the P14, especially at low speeds. Higher maximum speed for optimal cooling performance under high load
NATIVE OFFSET MOUNTING FOR INTEL AND AMD: Shifting the cold plate center towards the CPU hotspot ensures more efficient heat transfer
INTEGRATED VRM FAN: PWM-controlled fan that lowers the temperature of the voltage converters and thus ensures reliable performance
INTEGRATED CABLE MANAGEMENT: The PWM cables of the radiator fans are integrated in the sheathing of the hoses so that only a single visible cable is connected to the motherboard

Full Specifications

Brand	ARCTIC
Model	LFIII Pro 420
Voltage	12 volts
Wattage	4.2 watts
Material	Metal, Plastic, Rubber
Unit Count	1 Count
Part Number	ACFRE00181A
Material Type	Metal, Plastic, Rubber
Item Type Name	Water Cooler
Number of Items	1
Air Flow Capacity	110 cfm
Compatible Devices	Desktop, Server
INTEGRATED VRM FAN	PWM-controlled fan that lowers the temperature of the voltage converters and thus ensures reliable performance
Included Components	Liquid Freezer III 420
Warranty Description	6 years
Maximum Rotational Speed	2500 rpm
Item Dimensions L x W x H	18.03"L x 5.43"W x 1.5"H
INTEGRATED CABLE MANAGEMENT	The PWM cables of the radiator fans are integrated in the sheathing of the hoses so that only a single visible cable is connected to the motherboard
Global Trade Identification Number	04895265000348

Ready to buy?

Amazon shows no buyable offer for ARCTIC Liquid Freezer III Pro 420 - AIO CPU Cooler at the last check. A similar in-stock product is ARCTIC Liquid Freezer III Pro 420 A-RGB - AIO…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $89.79