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Arctic liquid freezer III pro 420 a-rgb white 420mm aio CPU cooler triple 140mm fans vrm fan copper base
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Description
Item No.
bdd5714f-0392-4048-8576-4be491c8375b
ARCTIC Liquid Freezer III Pro 420 A-RGB White CPU Cooler
420mm AIO38mm RadiatorTriple 140mm P14 ProIntegrated VRM Fan
The ARCTIC Liquid Freezer III Pro 420 A-RGB in white (part number ACFRE00189A) is a 420mm all-in-one liquid CPU cooler built for maximum thermal headroom. A thick 38mm radiator, three 140mm P14 Pro A-RGB fans and a copper micro-skived cold plate handle the hottest Intel and AMD processors, while an integrated VRM fan actively cools the motherboard power stages around the socket.
Attributes
Aoi Cooler Characteristics
- Supported CPU Sockets: Socket 1700, Socket AM5, Socket AM4, Socket 1851
Details
ARCTIC Liquid Freezer III Pro 420 A-RGB White CPU Cooler
420mm AIO38mm RadiatorTriple 140mm P14 ProIntegrated VRM Fan
The ARCTIC Liquid Freezer III Pro 420 A-RGB in white (part number ACFRE00189A) is a 420mm all-in-one liquid CPU cooler built for maximum thermal headroom. A thick 38mm radiator, three 140mm P14 Pro A-RGB fans and a copper micro-skived cold plate handle the hottest Intel andAMD processors, while an integrated VRM fan actively cools the motherboard power stages around the socket. Typically in stock with fast delivery across Cyprus.
Compatibility — check before buying:
Requires a case with 420mm radiator support (radiator is 458mm long, 38mm thick — check clearance). Fits Intel LGA 1851 and 1700 (Intel contact frame included) andAMD AM5 and AM4. A-RGB is 5V 3-pin addressable; a motherboard header or controller is needed for lighting sync.
Best For
✓Overclocked high-core CPUs (Core i9, Ryzen 9)
✓White-themed builds needing a matching 420mm AIO
✓Motherboards that benefit from active VRM cooling
✓Next-gen platforms on LGA 1851 andAMD AM5
✓Full towers with 420mm radiator mounts
✓Builders wanting strong cooling with A-RGB (no LCD)
Key Features
Thick 38mm 420mm Radiator
A 458 x 138 x 38mm aluminium radiator offers far more coolant-to-air surface than standard 27mm units, giving the hottest CPUs extra sustained thermal headroom.
Triple P14 Pro A-RGB Fans
Three 140mm P14 Pro fans with fluid dynamic bearings spin 400-2500 RPM for up to 110 CFM airflow and 5.2 mmH2O static pressure, with wide PWM range for quiet idle running.
Integrated VRM Fan
A built-in VRM fan (400-2500 RPM PWM) actively cools the motherboard power stages around the socket — a rare feature that helps stability under heavy, sustained loads.
Copper Pump + A-RGB Gen2
An efficient PWM pump (800-2800 RPM) over a copper micro-skived cold plate, with 12x A-RGB Gen2 LEDs on the pump and A-RGB fans, plus MX-6 thermal paste pre-supplied.
Technical Specifications
| Identification | |
| Brand | ARCTIC |
| Model | Liquid Freezer III Pro 420 A-RGB (White) |
| Part Number | ACFRE00189A |
| EAN / GTIN | 4895265000362 |
| MPN | ACFRE00189A |
| Radiator | |
| Dimensions | 458 x 138 x 38 mm |
| Material | Aluminium |
| Thickness | 38 mm |
| Tube Length | 500 mm |
| Fans | |
| Configuration | 3 x P14 Pro A-RGB (140 mm) |
| Bearing | Fluid Dynamic Bearing |
| Fan Speed | 400-2500 RPM (PWM) |
| Airflow | 110 CFM (186 m³/h) |
| Static Pressure | 5.2 mmH2O |
| Pump / VRM / Cold Plate | |
| Pump Speed | 800-2800 RPM (PWM) |
| VRM Fan | 400-2500 RPM (PWM) integrated |
| Cold Plate | Copper, micro-skived fins |
| Lighting | |
| A-RGB | 12x A-RGB Gen2 LEDs (pump) + A-RGB fans, 5V — no LCD display |
| Socket Compatibility | |
| Intel | LGA 1851, 1700 (contact frame included) |
| AMD | AM5, AM4 |
| General | |
| Colour | White |
| In the Box | MX-6 thermal paste (0.8 g) |
| Warranty | 1-Year Warranty (Singular) |
Frequently Asked Questions
Singular Expert Insight
The Liquid Freezer III Pro 420 is about raw cooling capacity: the extra-thick 38mm radiator and integrated VRM fan push it ahead of thinner 360mm AIOs for the hottest overclocked chips, and the white finish suits a bright build. If you want a display you will need an LCD model, but for pure performance-per-euro this is one of the strongest picks. Browse our CPU coolers range, and make sure your build has enough headroom with a quality unit from our PC power supplies selection.
Buyer's Guide
Buy it if
You have a 420mm-capable case and want maximum cooling for a hot, overclocked CPU with active VRM cooling and a white A-RGB look.
Skip it if
Your case only fits up to 360mm radiators, or you specifically want an LCD pump display.
Also consider
The 360mm Liquid Freezer III Pro for smaller cases, or an LCD-equipped AIO if a screen is a must-have.