ARCTIC Liquid Freezer III Pro 420mm ARGB CPU Liquid Cooler ( Black ) ( Liquid Freezer 3 )

The ARCTIC Liquid Freezer III Pro 420mm ARGB (model ACFRE00185A) is a full-featured all-in-one CPU liquid cooler designed for high-performance desktops. Its 420mm aluminium radiator measures 458 × 138 × 38 mm, which is notably thicker than conventional 27mm radiators, allowing it to retain more coolant volume and handle temperature spikes more effectively. Cooling performance starts at the cold plate, which uses copper with micro skived fins for maximised surface area and heat transfer. The pump operates between 800 and 2800 rpm via PWM control and draws 0.35 A at 12 V DC. Tube length is 450 mm, with an outer diameter of 12.4 mm and inner diameter of 6.0 mm, constructed from reinforced EPDM tubing with braided sheathing for long-term durability. Three P14 Pro A-RGB fans are pre-installed on the radiator, each spinning between 400 and 2500 rpm via PWM. They deliver up to 110 cfm (186 m³/h) of airflow at 5.2 mmH2O static pressure, using fluid dynamic bearings for quiet, reliable operation. Each connects via a 4-pin fan plug. A standout feature of the Pro line is the integrated VRM fan module, which runs at 400–2500 rpm (PWM-controlled, 0.05 A at 12 V DC) to actively cool voltage regulators on the motherboard — supporting stable operation under sustained load. The pump head also features offset mounting for both Intel and AMD platforms, shifting contact to the CPU's primary hotspot for more efficient heat transfer. An Intel Contact Frame is included to optimise contact pressure on supported sockets. A-RGB lighting is delivered via 12 A-RGB Gen2 LEDs drawing 0.40 A at 5 V DC, connecting through a 3-pin A-RGB plug with a pass-through socket for daisy-chaining. Two control modes are available: a splitter cable for independent control of pump, VRM fan, and radiator fans, or an all-in-one cable for single-PWM synchronisation. Included thermal interface material is MX-6 (0.8 g). The unit carries a 6-year warranty. Key Specifications: - Model: ACFRE00185A - Radiator Dimensions: 458 × 138 × 38 mm (aluminium) - Cold Plate: Copper, Micro Skived Fins - Tube Length: 450 mm | Outer Ø 12.4 mm / Inner Ø 6.0 mm - Pump Speed: 800–2800 rpm (PWM) | 0.35 A / 12 V DC - Fans: 3× P14 Pro A-RGB | 400–2500 rpm | 110 cfm | 5.2 mmH2O - Fan Bearing: Fluid Dynamic Bearing - VRM Fan: 400–2500 rpm (PWM) | 0.05 A / 12 V DC - LEDs: 12× A-RGB Gen2 | 0.40 A / 5 V DC | 3-pin A-RGB - PI / NNPI: 420 / 376 - TIM: MX-6 (0.8 g) - Compatibility: Intel LGA1851, LGA1700 | AMD AM5, AM4 - Operating Temperature: 0–40 °C - Unit Weight: 2358 g | Package Weight: 2.982 kg - Warranty: 6 Years