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Arctic Liquid Freezer III Pro 420 (Black)

All-in-One 420mm CPU Watercooling Kit

129€95
Recycling charge of 0€07
Lowest selling price: 149€95*
3 x 44€98
of which 4€99 fees
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* Lowest selling price on LDLC during the last 30 days.
-15% off with code MERRYPC
Overview

Arctic Liquid Freezer III Pro: Performance and aesthetics

With the Liquid Freezer III Pro all-in-one liquid CPU cooling kit, Arctic puts all its know-how at the service of gaming thanks to an improved pump specially developed in-house and controlled by PWM. Thanks to this system, it doesn't run at full load all the time, but adjusts its operation to the temperature of the processor to limit its noise level at rest. The system is completed by high static pressure fans and another 60 mm fan near the pump in charge of cooling the motherboard's VRM circuits.

Take advantage of Arctic expertise

  • The Liquid Freezer III Pro is ready to use thanks to its pre-installed radiator fans in push configuration.
  • With the splitter cable, the pump, VRM fan and radiator fans can be controlled separately or synchronised via a single PWM signal with the all-in-one cable.
  • MX-6 thermal paste included
  • PWM-controlled 60 mm VRM fan provides socket area cooling when VRM cooling is insufficient, in case of poor airflow or especially in overclocking scenarios.
  • The Liquid Freezer III Pro is equipped with a specially developed in-house PWM-controlled water pump, which has been optimised in terms of performance and noise.
  • The improved cold plate with an extended fin surface and optimised water pipes enables the Liquid Freezer III Pro to increase its performance while maintaining silent operation.
  • The cooling surface of the 38 mm thick radiator has been extended by 23% thanks to the increased fin stack. This not only provides better heat dissipation, but also a greater volume of liquid.
  • The Liquid Freezer III Pro is based on the P Pro series fans, which have a high static pressure.
Specifications
Select your criteria

General information

Product name

Arctic Liquid Freezer III Pro 420 (Black)

Brand

Arctic

Model

ACFRE00181A

Technical specifications

Use

Processor

Processor support

AMD AM4
Intel 1700
AMD AM5
Intel 1851

Color

Black

Luminous

No

Connector(s)

1 X 4-pin Female

Integrated display

No

PWM

Yes

Cooling type

Water cooling

Fan diameter

140 mm

Minimum rotation speed

400 RPM

Maximum rotation speed

2500 RPM

Max airflow

186 m³/h

Pressure

5.2 mm/H2O

Material(s)

Copper/Aluminum

Use

Gaming

AIO radiator compatibility

420mm radiator

Dimensions

Height (fan included)

68 mm

Width (fan included)

458 mm

Depth (fan included)

138 mm

Height

38 mm

Weight

2370 g

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

ARCTIC GmbH

Postal address

Bevenroder Straße 149, 38108 Braunschweig, Germany

Electronic Address

info@arctic.de

Product referenced on 25 Jul 2025

Customer reviews
  • 87%
    20 reviews
  • 9%
    2 reviews
  • 4%
    1 review
  • 0%
  • 0%
  • by ClaudineZ
    Posted on 2 Dec 2025
    Bought on 4 Nov 2025 from LDLC
    Number of reviews: 9 Average rating: 10

    Freeze, your frosting

    Cools well, no problem on triple A, RGB with good colour, even on wow it does not heat! A miracle!

    Model: Arctic Liquid Freezer III Pro 360 A-RGB (Black)
    Review automatically translated
  • by Trinley
    Posted on 28 Nov 2025
    Bought on 17 Nov 2025 from LDLC
    Number of reviews: 26 Average rating: 9

    certainly best in class

    I bought the 360 version without thinking too much about it after reading some very positive reviews and I don't regret it at all. I'm in Reunion Island and it's summer at the moment with ambient temperatures approaching 30 degrees. my 7800X3D doesn't exceed 65 degrees in game mode and 78 degrees in cpu stress test. be careful though, it's not a standard height aio and it won't fit into all small cases.

    Model: Arctic Liquid Freezer III Pro 360 A-RGB (White)
    Review automatically translated
  • by QuevinP
    Posted on 27 Nov 2025
    Bought on 17 Oct 2025 from LDLC
    Number of reviews: 3 Average rating: 8

    Best aio

    Nothing to complain about, keeps everything well chilled, no worries so far, I'm not disappointed with this item.

    Model: Arctic Liquid Freezer III Pro 360 A-RGB (Black)
    Review automatically translated
  • by ALEXANDRET
    Posted on 22 Nov 2025
    Bought on 7 Aug 2025 from LDLC
    Number of reviews: 1 Average rating: 10

    Easy installation and good performance

    AIO installed in a Fractal North on top. Installation went very smoothly. Very happy for the price. I would recommend setting the fans in your bios as their maximum speed is very high (as is the noise). Once the speed is set, it's perfect for gaming.

    Model: Arctic Liquid Freezer III Pro 240 (Black)
    Review automatically translated
  • by YoannA
    Posted on 19 Nov 2025
    Bought on 16 Oct 2025 from LDLC
    Number of reviews: 1 Average rating: 10

    The only accessible AIO I can recommend

    Having tested other aio's at reasonable prices, this is the only one that is silent, efficient and correct in terms of looks.
    The mounting system alone looks much better and smarter than the competition.

    buy it with your eyes closed, it has a good reputation for real reasons

    Model: Arctic Liquid Freezer III Pro 360 A-RGB (White)
    Review automatically translated

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