Arctic Liquid Freezer III Pro 420 - Black AIO CPU Cooler for AM4/AM5, LGA1700, LGA1851
Premium 420mm AIO with 38mm thick radiator, P14 Pro fans, integrated VRM cooling, and offset cold plate for optimal Intel/AMD CPU hotspot cooling with 6-year warranty.
Please Note
The website is currently being actively developed, you are welcome to place the order and in 99% of the cases your order will be processed as usual, but in some cases there may be a delay or the price may change. We will notify you if there are any issues.
Discontinued
This item was discontinued and currently is not available for order on our website. The item may become available soon. Please contact us if you need more information regarding the upcoming arrivals.
| Cooling (CPU & Case) - Device Type | CPU Liquid Cooler AIO |
|---|---|
| Cooling (CPU & Case) - Socket Support | AMD AM4 AMD AM5 Intel LGA1700 Intel LGA1851 |
| Cooling (CPU & Case) - Fan Size | 140 mm |
| Cooling (CPU & Case) - AIO Radiator Size | 420 mm |
| Cooling (CPU & Case) - Lightning | None |
| Cooling (CPU & Case) - Connector | 4-Pin PWM |
| Cooling (CPU & Case) - Color | Black |
| Cooling (CPU & Case) - Special Features | Low Noise |
The Arctic Liquid Freezer III Pro 420 is a high-performance all-in-one liquid CPU cooler designed for modern Intel and AMD processors. Featuring a premium-class 38mm thick aluminum radiator with 458x138x38mm dimensions, this cooler delivers superior cooling capacity compared to standard 27mm radiators. The system includes three pre-installed P14 Pro fans (400-2500 RPM, 110 CFM airflow, 5.2 mmH2O static pressure) and an integrated PWM-controlled VRM cooling fan (400-2500 RPM) to maintain stable voltage regulator module temperatures. The offset cold plate design with micro-skived copper fins is optimized for the hotspot locations on both Intel Tile-based and AMD Ryzen processors, ensuring efficient heat transfer across different socket architectures.
Installation is straightforward with pre-installed and pre-cabled fans, an improved Intel contact frame with optimized mounting pressure, and included MX-6 thermal paste (0.8g). The cooler features premium EPDM rubber tubing with internal fiber reinforcement to prevent sagging and ensure long-term durability. Dual control options allow independent management of the pump (800-2800 RPM), VRM fan, and radiator fans, or synchronized control via a single PWM signal. The system operates within 0-40°C ambient temperature range and comes with a comprehensive 6-year warranty, making it an excellent choice for high-performance builds requiring reliable thermal management.
- Premium 38mm thick aluminum radiator (458x138x38mm) with enhanced cooling surface area
- Three P14 Pro high-speed fans with Fluid Dynamic Bearing (400-2500 RPM, 110 CFM, 5.2 mmH2O)
- Integrated PWM-controlled VRM cooling fan (400-2500 RPM)
- Offset cold plate design optimized for Intel LGA1700/LGA1851 and AMD AM4/AM5 hotspots
- Micro-skived copper cold plate for superior heat transfer efficiency
- Premium EPDM tubing with internal fiber reinforcement (450mm length, 6.0mm ID / 12.4mm OD)
- Dual control options: independent or synchronized PWM control
- Pre-installed and pre-cabled fans for easy installation
- Includes MX-6 thermal paste (0.8g)
- 6-year manufacturer warranty
- Compatible with Intel LGA1700, LGA1851, AMD AM4, and AM5 sockets
- Operating ambient temperature: 0-40°C
| Device Type | All-in-One Liquid CPU Cooler (AIO) |
| Socket Compatibility | Intel LGA1700, LGA1851; AMD AM4, AM5 |
| Radiator Material | Aluminum |
| Radiator Dimensions | 458 (L) x 138 (W) x 38 (H) mm |
| Radiator Size | 420mm |
| Cold Plate Material | Copper with Micro-Skived Fins |
| Pump Speed | 800–2800 RPM (PWM Controlled) |
| Pump Current / Voltage | 0.35 A / 12 V DC |
| Pump Connector | 4-Pin PWM |
| VRM Fan Speed | 400–2500 RPM (PWM Controlled) |
| VRM Fan Current / Voltage | 0.05 A / 12 V DC |
| Radiator Fan Type | 3x P14 Pro |
| Radiator Fan Dimensions | 140 x 140 x 25 mm |
| Radiator Fan Speed | 400–2500 RPM |
| Radiator Fan Airflow | 110 CFM (186 m³/h) |
| Radiator Fan Static Pressure | 5.2 mmH₂O |
| Radiator Fan Bearing Type | Fluid Dynamic Bearing (FDB) |
| Radiator Fan Current / Voltage | 0.35 A / 12 V DC |
| Radiator Fan Connector | 4-Pin PWM |
| Tubing Length | 450 mm |
| Tubing Diameter (Inner / Outer) | 6.0 mm / 12.4 mm |
| Tubing Material | EPDM Rubber with Internal Fiber Reinforcement |
| Thermal Interface Material (TIM) | MX-6 (0.8 g) |
| Weight (Product Only) | 1675 g |
| Operating Ambient Temperature | 0–40 °C |
| Warranty | 6 Years |
| Color | Black |