Overview

The ARCTIC Liquid Freezer II 420 is an all-in-one CPU liquid cooler featuring a massive 420mm radiator. Designed for high-end processors, it supports the latest sockets including Intel LGA1700 and AMD AM5, making it a versatile choice for enthusiasts building powerful workstations or gaming rigs. A standout feature is the integrated 40mm VRM fan mounted on the pump unit, which actively cools the voltage regulators around the CPU socket. This helps maintain system stability under heavy loads, especially during overclocking. Additionally, the fan cables are routed through a single sleeve tube, resulting in a clean and tidy build with minimal cable clutter.

Connectivity & Compatibility

The Liquid Freezer II 420 supports a wide range of Intel sockets (LGA1700, LGA1200, LGA115x, LGA2066) and AMD sockets (AM5, AM4, TR4/sTRX4). The included mounting kit covers all major platforms, ensuring broad compatibility. Both the pump and fans connect via standard 4-pin PWM headers. The three included 140mm P-fans operate at 200–1700 RPM, controlled by the motherboard for optimal balance between cooling performance and noise levels.

Product Info

Released in 2020, the ARCTIC Liquid Freezer II 420 is positioned as a high-end AIO cooler that offers exceptional value. It competes directly with premium 420mm coolers from other brands but often at a lower price point, making it a popular choice among performance-oriented builders. The cooler comes with a 6-year manufacturer warranty, reflecting ARCTIC's confidence in its build quality. The package includes the radiator with pre-installed fans, mounting hardware for Intel and AMD, a tube of thermal paste, and a detailed installation manual.

Best Use Cases

High-end CPU users: For processors like the Intel Core i9 or AMD Ryzen 9, the 420mm radiator provides ample thermal headroom to handle sustained workloads and overclocking without thermal throttling. Silence-focused builders: The large radiator surface area allows the fans to run at lower speeds while still maintaining excellent cooling. This makes the Liquid Freezer II 420 ideal for quiet PC builds where noise levels are a priority. * Enthusiasts seeking clean builds: The integrated cable management system reduces visible wiring, contributing to a professional-looking interior. The VRM fan also helps lower motherboard temperatures, which is beneficial for systems running high-power CPUs.

Product Disclosure (Amazon)

  • Manufacturer: ARCTIC
  • Seller: OnlineインポートShop AM支店
  • Fulfilled by: OnlineインポートShop AM支店
  • ASIN: B08HLPFXWM
  • Note: This article covers a manufacturer-made product based on Amazon listing details.