ARCTIC FREEZER III PRO 420MM COOLER
£92.70 inc VAT
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About This Item
- White ARCTIC Liquid Freezer III Pro 420 A-RGB all-in-one liquid cooler
- Three 140 mm fans with 400–2500 RPM speed range
- Multi-compatible: LGA 1700, LGA 1851, AM4, AM5 socket support
- Copper base plate with aluminium radiator for efficient heat transfer
- Dynamic RGB lighting via 3-pin + 3-pin LED connector
- Max airflow 110 CFM, pressure 5.2 mmH2O, 186 m³/h air volume
- Fluid Dynamic Bearing fans for quiet, durable operation
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ARCTIC Liquid Freezer III Pro 420 | High-Performance RGB AIO Cooler
The ARCTIC Liquid Freezer III Pro 420 A-RGB (White) – Multi Compatible All-in-One CPU Water Cooler with A-RGB delivers premium liquid cooling for demanding PC builds. With a 420mm radiator, triple 140mm fans, and ARGB lighting, this cooler balances exceptional thermal performance with striking aesthetics for high-end gaming and workstation systems.
Key Specifications
| Metric | Spec |
|---|---|
| Radiator Size | 420mm (triple 140mm fans) |
| Supported Sockets | LGA 1700, LGA 1851, AM4, AM5 |
| Max Airflow | 110 CFM |
| Max Pressure | 5.2 mmH₂O |
| Bearing Type | Fluid Dynamic Bearing (FDB) |
| Lighting | Multi-colour ARGB |
Triple-Fan Performance for Maximum Cooling
The Liquid Freezer III Pro 420 features three 140mm fans operating at 400-2500 RPM, delivering up to 110 CFM of airflow across the large radiator surface. This high-volume air movement efficiently dissipates heat from both the CPU and VRM components, making it ideal for overclocking and sustained heavy workloads. The Fluid Dynamic Bearing fans ensure quiet operation even at maximum speed.
Universal Socket Compatibility
Supporting the latest Intel LGA 1700 and 1851 sockets alongside AMD AM4 and AM5 platforms, this cooler offers broad compatibility across current-generation CPUs. The multi-compatible mounting system simplifies installation whether you’re running a high-core-count Intel processor or AMD’s latest Ryzen chips, ensuring your investment remains relevant through multiple platform upgrades.
Premium ARGB Lighting Effects
The ARGB lighting system provides vibrant, customizable illumination with 3-pin + 3-pin LED connectors for synchronised effects. The white radiator and pump housing create a clean canvas for the multi-colour lighting, allowing you to match your build’s aesthetic theme. Control the lighting through compatible motherboard software or ARCTIC’s own controller for coordinated system lighting.
Maintenance-Free Operation
As a sealed all-in-one solution, the Liquid Freezer III Pro 420 requires no maintenance, filling, or tube routing. The copper base plate ensures efficient heat transfer from the CPU, while the aluminum radiator provides excellent heat dissipation. With a 50cm tube length, installation flexibility is maintained even in larger cases.
Box Contents
- ARCTIC Liquid Freezer III Pro 420 radiator
- Three 140mm ARGB fans
- Mounting hardware for all supported sockets
- Thermal paste
- ARGB controller and cables
- User manual
Check Before You Buy
- Confirm your case supports 420mm radiator mounting
- Verify clearance for triple-fan radiator thickness
- Check your motherboard’s ARGB header compatibility
- Ensure adequate space for pump and tubing routing
Frequently Asked Questions
Q: What CPU sockets does this cooler support?
A: LGA 1700, LGA 1851, AM4, and AM5 sockets are supported.
Q: How many fans come with the cooler?
A: Three 140mm ARGB fans are included with the 420mm radiator.
Q: Is this cooler suitable for overclocking?
A: Yes, the high airflow and large radiator make it excellent for overclocked systems.
Q: What type of lighting does it feature?
A: Multi-colour ARGB lighting with 3-pin + 3-pin connectors.
Q: What are the radiator dimensions?
A: 458mm x 138mm x 68mm (W x H x D).
The Consultant’s Verdict & Warranty
The ARCTIC Liquid Freezer III Pro 420 represents excellent value for enthusiasts seeking premium cooling performance without the complexity of custom loops. Its combination of triple-fan cooling, universal socket support, and ARGB aesthetics makes it suitable for high-end gaming builds and content creation workstations. Covered by the standard Manufacturer Warranty.
| Performance | |
|---|---|
| Suitable location | Processor |
| Fan connector | 4-pin |
| Pulse-width modulation (PWM) support | Yes |
| Rotational speed (min) | 400 RPM |
| Rotational speed (max) | 2500 RPM |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| Type | All-in-one liquid cooler |
| Operating temperature (T-T) | 0 - 40 °C |
| Fan diameter | 14 cm |
| Supported processor sockets | LGA 1700, LGA 1851, Socket AM4, Socket AM5 |
| Maximum airflow | 110 cfm |
| Maximum air pressure | 5.2 mmH2O |
| Airflow | 186 m³/h |
| Number of fans | 3 fan(s) |
| VRM fan speed (min) | 400 RPM |
| VRM fan speed (max) | 2500 RPM |
| Pump motor speed (min) | 800 RPM |
| Pump motor speed (max) | 2800 RPM |
| Design | |
| Fan connector | 4-pin |
| Number of fans | 3 fan(s) |
| Illumination colour | Multi |
| Product colour | White |
| Illumination LED | Yes |
| Radiator material | Aluminum |
| Base plate material | Copper |
| LED connector type | 3-pin + 3-pin |
| Technical details | |
| Type | All-in-one liquid cooler |
| Fan diameter | 14 cm |
| Supported processor sockets | LGA 1700, LGA 1851, Socket AM4, Socket AM5 |
| Maximum airflow | 110 cfm |
| Maximum air pressure | 5.2 mmH2O |
| Airflow | 186 m³/h |
| Number of fans | 3 fan(s) |
| Fan connector | 4-pin |
| Illumination LED | Yes |
| Ports & interfaces | |
| Fan connector | 4-pin |
| Power | |
| LED voltage | 5 V |
| Pump voltage | 12 V |
| Pump current | 0.35 mA |
| Fan voltage | 12 V |
| Fan current | 0.35 A |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 40 °C |
| Colour | |
| Product colour | White |
| Weight & dimensions | |
| Package depth | 447 mm |
| Package width | 328 mm |
| Package height | 158 mm |
| Width | 458 mm |
| Package weight | 2.98 kg |
| Depth | 68 mm |
| Height | 138 mm |
| Weight | 2.36 kg |
| Radiator width | 13.8 cm |
| Radiator depth | 45.8 cm |
| Radiator height | 3.8 cm |
| Tube length | 50 cm |
| Tube inner diameter | 6 mm |
| Tube diameter | 1.24 cm |
| Packaging data | |
| Package depth | 447 mm |
| Package width | 328 mm |
| Package height | 158 mm |
| Package weight | 2.98 kg |
| Package type | Box |
| Indication | |
| Illumination colour | Multi |
| Packaging content | |
| Package type | Box |
| Other features | |
| LED voltage | 5 V |
| Identifiers | |
| Distributor SKUs | CLACFRE00189A |
| Additional EANs | 0840033403030 |
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