Dispatch will usually be made with UPS, although an alternative service may be used depending on stock location.
    All orders
    Global Shipping
    Clove Technology has over 2 decades' experience in international shipping.

    Every week we dispatch packages from our warehouse in the UK to destinations in every continent.

    Our checkout system will automatically provide shipping rates for available services based on your basket contents & destination country.

    We can ship with DHL Express, UPS or international post via UK Royal Mail. Please note not all services are available to every destination.
    Global Shipping
    UPS & DHL Express
    Rated excellent
    Business customers
    Credit Account - Volume Pricing
    25+ years experience
    Founded in 1992 to target the emerging mobile computing market, Clove Technology has grown and adapted into what you see today.

    Staffed by a small, yet dedicated team, product knowledge and customer service have been paramount to our continued success for nearly 3 decades.

    Whether you plan on buying a £1,000 smartphone or a £10 case, for delivery down the road or to the other side of the world, we're here to answer any questions you might have.
    25+ Years experience
    Founded in 1992
    ARCTIC Liquid Freezer III 420 - All-in-one Liquid CPU Cooler in Black - 420mm

    ARCTIC Liquid Freezer III 420 - All-in-one Liquid CPU Cooler in Black - 420mm

    ex. VAT (Rest of World)
    PayPal Credit 0% for 4 months
    BUSINESS CUSTOMERS – please email:
    FAST SHIPPING – All orders

    Key Features

    • Processor All-in-one liquid cooler 14 cm
    • Supported processor sockets: Intel LGA1851, LGA 1700, Socket AM4, Socket AM5
    • 72.8 cfm Fluid Dynamic Bearing (FDB)
    • Pulse-width modulation (PWM) support
    • 140 x 140 x 27 mm
    • Black
    • 1 pc(s)

    AMD/Intel, 3x 140 mm, 200-1700 RPM, 72.80 cfm, 2.40 mmH2O, FDB, PWM, 400-2500 RPM VRM, 800-2800 RPM Pump, 12 V DC, 2235 g

    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.

    Ready Out-of-the-Box - Easy Installation    
    The Liquid Freezer III is ready for immediate use thanks to its pre-installed radiator fans in push configuration. The fan cables are integrated into the jacket of the hoses so that only one cable needs to be connected to the motherboard. With the MX-6 thermal compound included in delivery, you have everything you need for quick and easy installation.

    Future-Proof Compatibility    
    The Liquid Freezer III is multi-compatible with Intel and AMD sockets. Intel will release the new Arrow Lake processors on the LGA1851 socket in the future. ARCTIC customers don't need to worry that the new CPUs will also require new coolers. We guarantee full compatibility. All Liquid Freezer III can be used with the new LGA1851 socket from Intel without limitation.

    Silent and Powerful VRM Fan    
    The voltage converters of motherboards often work at their maximum temperature in combination with power-hungry CPUs. To compensate the lack of airflow from a tower cooler, the Liquid Freezer III works with a revised VRM fan. The 60 mm PWM-controlled fan enables almost silent cooling of the socket area when VRM cooling is insufficient, in cases with poor airflow or especially in overclocking scenarios. This enables a continuously higher load and a longer service life for the voltage converters.

    Contact Frame for Intel LGA1700 and LGA1851    
    Intel's Independent Loading Mechanism (ILM) deforms the CPU by pressing it into the socket at two points with over 40 kg. This causes pressure in the PCB, the die and the solder layer between the die and IHS (Integrated Heat Spreader). With high thermal load, this can lead to long-term problems. The patent-pending mounting frame from ARCTIC does not deform the CPU, reduces the mechanical load on the CPU massively, is quick and easy to install and allows the cooler to be screwed onto the CPU's backplate. As a result, mechanical stress on the mainboard and CPU is minimised, cooling performance remains consistent and installation is quick and uncomplicated.

    Optimised, In-House Developed Water Pump    
    The Liquid Freezer III is equipped with a specially developed PWM-controlled water pump, which has been further optimised in terms of both performance and noise. Thanks to the improved coldplate with an extended fin surface and optimised water pipes, the Liquid Freezer III increases its performance while maintaining quiet operation.

    Complete Control or Simple Control    
    Two connection cables - two control options:Separate regulation: By using the splitter cable with three separate connections, the pump, VRM fan and radiator fan can be controlled independently of each other. This allows, for example, the speed of the VRM fan to be controlled independently of the CPU and to be adjusted analogue to the temperature of the voltage converters via PWM.All-in-One: Like the Liquid Freezer II, this allows the entire unit to be controlled via a single connection, whereby the speed of the radiator fans is output. The pump, VRM and radiator fans can therefore be easily controlled via a single PWM setting.     

    Native AMD Offset Mounting    
    For several generations, AMD has been using a multi-die chiplet design for its Ryzen desktop processors. Unlike Intel CPUs, the hotspot on these processors is not located centrally under the IHS (Integrated Heat Spreader), but is slightly offset. The AMD mounting solution therefore has a 5 mm offset in order to achieve optimum heat dissipation.

    Improved Radiator Design    
    The cooling surface of the 38 mm thick radiator has been extended by 23 % by increasing the fin stack. This not only enables improved heat dissipation, but also a larger liquid volume. Consequently, the heat build-up in the water cooling system is slowed down and power and temperature peaks can be effectively managed over a longer period of time.

    High Static Pressure    
    ARCTIC relies on the well-proven P fans, which have already received several awards for their outstanding performance. The P series is particularly suitable for use on heat sinks and radiators with a high fin density. Thanks to their high static pressure, they achieve significantly better results compared to fans designed for high air circulation.

    Limited Compatibility with Few Motherboards    
    Some motherboards are incompatible with the Liquid Freezer III due to oversized SSD coolers in the M.2_1 slot. We provide a suitable M.2 cooler free of charge for affected motherboards.

    Wide Range of Variants    
    The Liquid Freezer III offers outstanding cooling performance in four different sizes and three variants. While the Black version is completely black, the A-RGB versions are available in black or white and have digitally addressable lighting for the pump head and radiator fans. With radiator sizes of 240, 360, 280 and 420, the Liquid Freezer III offers the ideal combination of performance, technology and design for everyone!

    Quality You Can Rely On    
    To ensure the longevity of our products, we carry out long-term tests under different, sometimes very adverse conditions. In this way, we learn how we can permanently improve our products for our customers. In addition, the excellent results of long-term testing give us the assurance that our products are not only outstanding in terms of quality, but also in terms of durability. This is a certainty that we are happy to pass on to our customers, which is why we give a 6-year manufacturer's guarantee.

    Operating temperature (T-T) 0 - 40 °C
    Fan static pressure 2.4 mmH2O
    VRM fan speed (min) 400 RPM
    VRM fan speed (max) 2500 RPM
    Pump motor speed (min) 800 RPM
    Pump motor speed (max) 2800 RPM
    Fan speed (min) 200 RPM
    Fan speed (max) 1700 RPM
    Quantity per pack 1 pc(s)
    Pump connector 4-pin
    Bearing type Fluid Dynamic Bearing (FDB)
    Pulse-width modulation (PWM) support Yes
    Airflow 123.76 m³/h
    Maximum airflow 72.8 cfm
    Supported processor sockets Intel LGA1851, LGA 1700, Socket AM4, Socket AM5
    Fan diameter 14 cm
    Type All-in-one liquid cooler
    Suitable location Processor
    Fan connector 4-pin
    Number of fans 3 fan(s)
    Base plate material Copper
    Radiator material Aluminum
    Product colour Black
    Pump voltage 12 V
    Pump current 350 mA
    Fan voltage 12 V
    Fan current 0.12 A
    Weight & dimensions
    Package weight 2.9 kg
    Package height 158 mm
    Package depth 447 mm
    Package width 328 mm
    Cable length 0.04 m
    Fan dimensions (W x D x H) 140 x 140 x 27 mm
    Weight 2.23 kg
    Pump height 6.85 cm
    Pump depth 10.8 cm
    Pump width 9.1 cm
    Tube diameter 1.24 cm
    Tube inner diameter 6 mm
    Tube length 45 cm
    Radiator height 3.8 cm
    Radiator depth 45.8 cm
    Radiator width 13 cm
    Packaging content
    Package type Hanging box

    Customer Reviews

    Be the first to write a review

    Customer Reviews

    Be the first to write a review