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| Weight & dimensions | |
| Weight | 2.33 kg |
| Package weight | 3 kg |
| Cable length | 0.04 m |
| Package depth | 447 mm |
| Package height | 158 mm |
| Package width | 328 mm |
| Tube diameter | 1.24 cm |
| Radiator width | 13.8 cm |
| Radiator depth | 45.8 cm |
| Radiator height | 3.8 cm |
| Tube length | 45 cm |
| Fan dimensions (W x D x H) | 140 x 140 x 27 mm |
| Tube inner diameter | 6 mm |
| Pump width | 9.1 cm |
| Pump depth | 10.8 cm |
| Pump height | 6.85 cm |
| Energy management | |
| Pump voltage | 12 V |
| Pump current | 350 mA |
| Fan voltage | 12 V |
| Fan current | 0.17 A |
| Rated voltage | 12 V |
| LED voltage | 5 V |
| Packaging content | |
| Package type | Hanging box |
| Mounting kit |  |
| CPU bracket(s) | |
| RGB controller included | |
| Other features | |
| Noise level | 23 dB |
| Built-in display |  |
| Thermal grease | |
| Design | |
| Product colour | White |
| Brightness adjustment | |
| Number of fans | 3 fan(s) |
| Illumination colour | Multi |
| Base plate material | Copper |
| Water block material | Copper |
| Fan connector | 4-pin |
| Radiator material | Aluminum |
| Illumination LED | |
| Fan controller | |
| LED connector type | 3-pin |
| Performance | |
| Type | All-in-one liquid cooler |
| Operating temperature (T-T) | 0 - 40 °C |
| Airflow | 117.06 m³/h |
| Fan diameter | 14 cm |
| Supported processor sockets | Intel LGA1851, LGA 1700, Socket AM4, Socket AM5 |
| Suitable location | Processor |
| Maximum airflow | 69.9 cfm |
| Maximum air pressure | 2 mmH2O |
| Pump motor speed (max) | 2800 RPM |
| Pump motor speed | 800 RPM |
| Pump motor speed (min) | 800 RPM |
| Fan speed (max) | 1900 RPM |
| Fan speed (min) | 200 RPM |
| Rotational speed (min) | 200 RPM |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| Quantity per pack | 1 pc(s) |
| Fan noise level (max) | 23 dB |
| Pump noise level | 10 dB |
| Pulse-width modulation (PWM) support | |
| Pump connector | 4-pin |
| Fan static pressure | 2 mmH2O |
| VRM fan speed (max) | 2500 RPM |
| VRM fan speed (min) | 400 RPM |
| EAN | 4895213704571 |
The ARCTIC Liquid Freezer III 420 is an all-in-one liquid cooler engineered for high-performance systems requiring substantial thermal dissipation. Its cooling assembly consists of a 420 mm aluminum radiator paired with three 140 mm fans operating on a PWM-controlled speed range from 200 to 1900 RPM. The pump block features a copper cold plate for direct heat transfer and integrates a dedicated VRM fan to provide active cooling for motherboard components around the CPU socket. This configuration is designed to manage the thermal output of modern processors under sustained computational loads.
This cooler ensures broad compatibility with current CPU sockets, supporting Intel's LGA1851/1700/1200 series and AMD's AM4/AM5 platforms. Aesthetically, the unit features a white finish and fans equipped with addressable RGB lighting for visual customization. The illumination is controlled via a standard 3-pin ARGB connector, allowing for synchronization with various motherboard lighting ecosystems. Installation is accommodated by 450 mm of flexible, braided tubing and a complete mounting kit, which includes the necessary hardware and thermal paste.
Key Features:- Supports Intel LGA1851/1700/1200/115x and AMD AM4/AM5 sockets
- Features three 140 mm fans with Fluid Dynamic Bearings
- Provides a fan speed range of 200 to 1900 RPM via PWM control
- Delivers maximum airflow of 69.9 CFM and static pressure of 2.0 mmH₂O
- Pump operates between 800 and 2800 RPM with PWM control
- Integrated VRM fan speed range of 400 to 2500 RPM
- Constructed with a 458 x 138 x 38 mm aluminum radiator
- Utilizes a copper base plate for thermal transfer
- Equipped with 450 mm braided rubber tubing
- Addressable RGB lighting on fans connects via a 3-pin header
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- leaflet (English)
The above technical details are for reference only and may change without notice. We reserve the right to correct printing errors and use illustrations for guidance. Some text may be auto-generated or machine-translated, which could lead to inaccuracies.