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Liquid Freezer II 420

Multi Compatible All-in-One CPU Water Cooler

Future-Proof Compatibility

At the end of 2022, AMD has released the AM5 socket, the successor to its popular AM4 platform. Because all mechanical dimensions remain identical, we are able to guarantee the compatibility of ARCTIC coolers with AMD's new processors.

Additionally, all coolers shipped by ARCTIC are already compatible with Intel's Alder Lake and Raptor Lake LGA1700 processors.
Coolers purchased from resellers, however, may still have been shipped without the corresponding accessories. In this case, please contact our customer support.

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Optimized for AMD Ryzen

AMD has been using a new multi-die layout for its high-end AM4 processors for a few generations now. In these processors, the hotspot is not centered by the IHS (Integrated Heat Spreader). To still allow for optimal heat dissipation, we have developed a special mounting kit for the Liquid Freezer II that allows the cold plate to be placed directly over the hotspot of the CPU. AMD's upcoming 7000 series AM5 processors also come with multi-die layouts and can therefore benefit from the Liquid Freezer II's unique offset mounting.

Best CPU Water Cooler

The Liquid Freezer II series has been tested numerous times by independent reviewers and praised for its performance, price and quietness. It consistently exceeds all expectations and sets new standards in compact water cooling. As a further mark of recognition, the Liquid Freezer II series was awarded the “European Hardware Award 2022” for the best CPU water cooler.

Outstanding Performance

The all-in-one cooling handles the entire cooling requirements - even of the most powerful processors from Intel® and AMD®. It performs effortlessly with over 200 W of heat to be dissipated, which is why your CPU can be kept cool even in extreme overclocking. When it comes to competitive products from leading cooler manufacturers, the Liquid Freezer II leaves them behind in terms of both performance and noise level.

Tested using the Liquid Freezer II 420 by:

GN Logo - Award - LFII420

Efficient, Proprietary Pump

While many competitors use a generic water pump, we‘ve gone to great lengths to develop our own. The results? Quieter operation and higher efficiency. And, like the Liquid Freezer II’s fans, the water pump is PWM-controlled and adjusts its speed accordingly. This not only leads to significantly lower noise levels at low and typical loads, but also a much lower power consumption for all components of the AiO.

Premium Class Radiator

Unlike most all-in-one liquid cooling manufacturers, we rely on 38mm thick radiators with a high fin density. This allows a larger amount of water to be used in the circuit and significantly increases the cooling surface area.

Water has a much higher heat capacity than aluminum or copper. This leads to a slower and an up to 5 °C lower temperature increase in the time-limited turbo mode of modern CPUs.

Quiet VRM Fan

Small fans have the reputation of being particularly loud and not very durable; that’s why we set out to develop a quiet, sturdy diagonal fan especially for the Liquid Freezer II. We’re 100% convinced that this 40 mm fan is just as durable as our other case fans. If the fan doesn’t live up to our claims, our customer service team will send you a replacement free of charge (without you having to replace the entire unit).

The fan is PWM-controlled and can cool your voltage converters and the socket area almost inaudibly by up to 15 °C especially in overclocking scenarios, with insufficient VRM cooling or in cases with low airflow and thus allows continuous high load. Provided there is sufficient VRM cooling, it can be turned off at will.

High Quality Tubing with Integrated Cable Management

The Liquid Freezer II's fiber-reinforced 45 cm tubing allows for installation even in large cases and effectively prevents coolant evaporation, so you don't have to worry about refilling your compact water cooling system.

Plus, our sophisticated cable management hides the PWM cables of your radiator fans in the sleeving.

This makes installation easy and tidy: you only have to connect one connector to the mainboard, and there are no other cables to hide.

Fan Optimized on Static Pressure

The illuminated P-fans are already mounted on the radiator from the factory. During the development of the new P-serie fans, special emphasis was placed on a focused airflow and thus a high static pressure. The fans guarantee extremely efficient cooling, even with increased air resistance. Therefore, the P-series fans are particularly suitable for use on heatsinks and radiators.

Find more information about the P fans in our FAQ.

The Right Configuration for Everyone

With its long tubing, availability in five sizes, and various lighting options, the Liquid Freezer II series is extremely versatile. It has high compatibility and can be used in Small Form Factor PCs (note radiator thickness!) as well as in Full Towers.

View the entire series

The Liquid Freezer II is the successor to the well-respected Liquid Freezer water cooler from ARCTIC.

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Technical specifications & manual

Compatibility
Intel Socket:
1700, 1200, 115X, 2011-3*, 2066* *Square ILM
AMD Socket:
AM5, AM4
Ram Clearance:
unlimited
Warranty:
6 Years
Operating Ambient Temperature:
0 - 40 °C
Pump/Cold Plate
VRM Fan:
40 mm, 1000 – 3000 RPM (PWM controlled)
Pump:
800 – 2000 RPM (PWM controlled)
Power Consumption:
0,5 W – 2,7 W (Pump + VRM Fan)
Cold Plate:
Copper, Micro-Skived-Fins
Thermal Paste:
MX-4 (0,8 g)
Fan
Fan:
3x ARCTIC P14 PWM – 140 mm Fan
Fan Speed:
200 – 1 700 RPM
Fan Bearing:
Fluid Dynamic Bearing
Noise Level:
0,3 Sone
Current:
0,12 A / 12 V DC
Airflow:
72,8 CFM
Static Pressure:
2,4 mm H2O
Connector:
4-pin-Connector
Size & Weight
Radiator:
458 x 138 x 38 mm
Pump (w/o tubes)
98 mm x 78 mm x 53 mm
Tube Diameter:
Outer: 12,4 mm // Inner: 6,0 mm
Tube Length:
450 mm
Weight:
1977 g (Fan, Radiator, Pump, Tubes)
  • Width: 155 mm
  • Height: 170 mm
  • Length: 473 mm
  • Weight: 2.728 kg

Product gallery

€141.99

Prices incl. VAT, free shipping
Delivery time

Other variants

Other variants

Liquid Freezer II 420 RGB
Multi Compatible All-in-One CPU Water Cooler with RGB

€142.99

Prices incl. VAT, free shipping
Liquid Freezer II 420 A-RGB
Multi Compatible All-in-One CPU Water Cooler with A-RGB

€148.99

Prices incl. VAT, free shipping
Liquid Freezer II 360 A-RGB
Multi Compatible All-in-One CPU Water Cooler with A-RGB
Colour

€139.99

Prices incl. VAT, free shipping

Accessories and Spare parts

Accessories and Spare parts

winterSale
MX-4
PREMIUM Performance Thermal Paste
€9.99 - 35 %  Price advantage

€6.49

Prices incl. VAT, free shipping
Liquid Freezer II - AM3(+) Mounting Kit
Available free of charge from our support with the indication of the invoice.

€3.99

Prices incl. VAT, free shipping
LGA1700 Mounting Kit - Liquid Freezer II Series
For mounting the Liquid Freezer II Series on Intel Alder Lake and Raptor Lake

€8.99

Prices incl. VAT, free shipping

Our
Support

Do you need help or product advice?

Our competent customer service is at your side with questions about our products, spare parts and in case of complaints. Support