











- Stock: In Stock
- Brand: Arctic
- Model: Freezer III Pro 420 A-RGB
FLAGSHIP 420MM RADIATOR - INTEGRATED VRM FAN - INTEL LGA 1851 & AMD AM5 READYArctic Liquid Freezer III Pro 420 ARGB Liquid CPU Cooler
Unleash the ultimate thermal dissipation capacity with the Arctic Liquid Freezer III Pro 420 ARGB PWM Black Liquid CPU Cooler. Purpose-built for extreme workloads and heavy CPU overclocking, this flagship cooler features a massive 458mm length aluminum radiator with an extra-thick 38mm profile for unmatched liquid surface capacity. Powered by a PWM-controlled pump running up to 2800 RPM and an integrated 40mm VRM cooling fan that keeps motherboard power delivery stages ice-cold. Outfitted with three high-static pressure P14 PWM PST ARGB fans, long 450mm sleeved tubing, and bundled with premium Arctic MX-6 thermal compound. Fully compatible with modern high-tier platforms including Intel LGA 1851 / 1700 and AMD AM5 / AM4 sockets. Available at El-Nekhely Technology.
Thick 38mm Radiator, Dedicated VRM Active Cooling & Premium MX-6 Thermal Compound
- Massive 420mm Radiator Surface: Features a 458 x 138 x 38 mm high-density aluminum radiator layout offering vastly higher liquid capacity than standard AIOs.
- Active Integrated VRM Cooling Fan: Dedicated 400–2500 RPM VRM fan directly cools power delivery components around the CPU socket for enhanced stability.
- PWM-Controlled Water Pump: Intelligent 800–2800 RPM micro-skived copper cold plate pump ensures efficient fluid flow and whisper-quiet idling.
- P14 PWM PST ARGB High-Static Fans: Three 140mm fluid dynamic bearing fans delivering up to 69.90 CFM airflow with vibrant 3-pin ARGB lighting sync.
- Included Arctic MX-6 Thermal Paste: Ships out-of-the-box with 0.8g of high-performance Arctic MX-6 thermal compound for optimal heat transfer.
Certified Technical Specifications
| Feature | Technical Specification |
|---|---|
| Brand / Series | Arctic | Liquid Freezer III Pro Series |
| Model Specifics | Liquid Freezer III Pro 420 ARGB Black |
| Radiator Dimensions | 458 (L) x 138 (W) x 38 (H) mm |
| Radiator Material | Extra-Thick Industrial Aluminum |
| Cold Plate Material | Copper with Micro-Skived Fin Structure |
| Pump Speed Range | 800 — 2800 RPM (PWM Controlled) |
| VRM Fan Speed Range | 400 — 2500 RPM (PWM Controlled) |
| Included Cooling Fans | 3 x Arctic P14 PWM PST ARGB (140mm) |
| Fan Speed Range | 200 — 1900 RPM PWM Control |
| Max Fan Airflow | 69.90 CFM (117.06 m³/h) |
| Max Static Pressure | 2.0 mmH₂O High-Static Rating |
| Fan Bearing Type | Fluid Dynamic Bearing (FDB) |
| Tubing Length & Diameter | 450 mm Length | Outer: 12.4 mm / Inner: 6.0 mm |
| Thermal Compound Included | Arctic MX-6 Thermal Paste (0.8 g) |
| Intel Socket Compatibility | LGA 1851 / LGA 1700 Sockets |
| AMD Socket Compatibility | Socket AM5 / Socket AM4 Compatible |
| Lighting System | 3-Pin 5V Digital A-RGB System Connector |
| Total Net Weight | 2325 g Chassis Weight |
| Warranty Standard | 3 Years Official Manufacturer Warranty |






