Arctic Liquid Freezer III 420 ARGB Black Liquid Cpu Cooler

Arctic Liquid Freezer III 420 A-RGB Liquid CPU Cooler – Extreme Cooling Power Meets Silent Precision

The Arctic Liquid Freezer III 420 A-RGB is the pinnacle of next-generation liquid cooling, delivering unmatched performance, silent operation, and vibrant addressable RGB lighting. Designed for enthusiasts, overclockers, and professionals, this cooler pairs triple 140mm P14 PWM PST A-RGB fans with an advanced 38mm-thick radiator, providing exceptional thermal efficiency even for the most power-hungry CPUs.

Tested and officially certified by Intel for high-end processors such as the Core i9-13900K, i9-14900K, and i9-13900KS, the Liquid Freezer III 420 A-RGB guarantees uncompromising cooling, making it a top-tier choice for gamers, creators, and workstation users.

Specifications

Compatibility:

• Intel: LGA1851, LGA1700

• AMD: AM5, AM4

PI | NNPI: 374 | 339
Thermal Paste: MX-6 (0.8 g included)
Warranty: 6 Years
Operating Temperature: 0–40°C
Weight: 2325 g

Connectors:

• LED Connector: 3-Pin A-RGB

• All-In-One Connector: 4-Pin PWM

• Splitter Connector: 3x 4-Pin PWM

Pump

• Speed: 800–2800 rpm (PWM controlled)

• Current | Voltage: 0.35 A | 12 V DC

• Cold Plate: Copper with Micro Skived Fins

• Tube Length: 450 mm

• Tube Diameter: Outer 12.4 mm | Inner 6.0 mm

Radiator

• Material: Aluminium

• Dimensions: 458 (L) × 138 (W) × 38 (H) mm

VRM Cooling Module

• VRM Fan Speed: 400–2500 rpm (PWM controlled)

• Current | Voltage: 0.05 A | 12 V DC

• LEDs: 12x A-RGB LEDs

• Lighting Power: 0.40 A | 5 V DC

Radiator Fans

• Fans: 3x Arctic P14 PWM PST A-RGB

• Speed: 200–1900 rpm

• Airflow: 69.90 CFM | 117.06 m³/h

• Static Pressure: 2.0 mmH₂O

• Bearing Type: Fluid Dynamic Bearing

• Current | Voltage: 0.17 A | 12 V DC

• Connector: 4-Pin PWM

• Cable Length: 40 mm

A-RGB Lighting

• LEDs: 12x A-RGB LEDs per fan

• Voltage / Current: 5 V DC | 0.40 A

• Cable Length: 40 mm + 80 mm Splitter

• Connector: 3-Pin A-RGB + 3-Pin Plug

Key Features

Ready Out-of-the-Box Installation

The Liquid Freezer III comes pre-assembled with fans in a push configuration for fast, clean setup. Integrated fan cabling within the tubing minimizes clutter — only one motherboard connection required. Includes Arctic MX-6 thermal paste, ensuring an effortless installation experience.

Intel Certified for Flagship Processors

Officially tested and approved by Intel for elite CPUs like the i9-13900K, i9-14900K, and i9-13900KS, guaranteeing perfect compatibility and exceptional cooling performance under extreme loads.

Future-Proof Compatibility

Supports Intel LGA1851 and AMD AM5 sockets, with optional kits available for LGA1200/115X platforms — ensuring long-term usability across multiple generations of processors.

Optimized Radiator Design

The 38mm-thick aluminium radiator features a 23% larger cooling surface, improving heat dissipation and increasing liquid volume. This design ensures excellent stability during power surges and long gaming or rendering sessions.

Silent & Efficient VRM Cooling

The built-in 60mm PWM-controlled VRM fan keeps voltage regulators cool and stable — perfect for compact builds or overclocked setups where airflow is limited. Quiet, powerful, and smartly integrated.

Brilliant A-RGB Illumination

Each fan includes individually addressable RGB LEDs compatible with all major software — ASUS Aura Sync, MSI Mystic Light, Gigabyte RGB Fusion, and ASRock Polychrome — offering full customization and synchronization options.

Native AMD Offset Mounting

Designed with a 5mm offset mounting bracket, the Liquid Freezer III optimizes heat transfer for AMD Ryzen chiplet CPUs, targeting the actual hotspot area for improved cooling performance.

Integrated Cable Management

Fan cables are neatly routed through the sleeved tubing, reducing clutter and simplifying installation. Only one connector is needed for power and control.

Dual Control Options

Users can choose between separate control (for pump, fans, and VRM) or single PWM control, providing flexibility for custom cooling profiles or simpler system management.

Why Choose the Arctic Liquid Freezer III 420 A-RGB

• ✅ Largest radiator in the series – 420mm for superior heat capacity

• ✅ Triple 140mm fans for maximum airflow and silent cooling

• ✅ Intel-certified performance for flagship CPUs

• ✅ Future-proof socket compatibility (Intel 1851 & AMD AM5)