This article covers Thermalright (サーマルライト) Peerless Assassin 120 Mini White CPUクーラー ヒートパイプ6本 AGHPテクノロジー 120mm PWMファン付き 1500RPM速度 AMD:AM4 AM5.

Overview

The Thermalright Peerless Assassin 120 Mini White is a compact dual-tower air CPU cooler that delivers impressive cooling performance in a small footprint. It features six 6mm heat pipes with 4th-gen AGHP (Anti-Gravity Heat Pipe) technology, ensuring stable heat transfer regardless of orientation. The all-white fan and fin design makes it an excellent choice for white-themed PC builds. The included TL-D12W 120mm PWM fan spins up to 1500 RPM, pushing 66.87 CFM of airflow while keeping noise at just 25.6 dBA. The S-FDB bearing is rated for 20,000 hours of operation, promising long-term reliability.

Connectivity & Compatibility

Socket support covers Intel LGA1851/1700/1200/115x and AMD AM5/AM4, including the latest Intel Arrow Lake (LGA1851) platform. The mounting kit includes backplates and brackets for each platform, and the included manual makes installation straightforward even for first-time builders. However, due to the dual-tower design, clearance with tall RAM modules can be an issue. The first DIMM slot may be blocked if you use memory with large heatsinks. Low-profile memory is recommended for trouble-free installation.

Product Info

Released in late 2023, the Peerless Assassin 120 Mini White sits in the entry-to-mid-range price bracket at around ¥7,000. It comes with a one-year warranty, mounting hardware for Intel and AMD, a tube of TF7 thermal paste, and fan clips. Market positioning is firmly in the value-oriented mid-range segment. While the price is entry-level, the cooling performance rivals many mid-range dual-tower coolers. The white color scheme is a unique differentiator at this price point.

Best Use Cases

White-themed PC builds: The all-white fan and fin stack looks stunning through a tempered glass side panel. Mid-range CPUs (Ryzen 5/7, Core i5/i7): Handles TDPs up to around 150W, making it ideal for gaming and light creative workloads. * Compact mid-tower cases: At just 135mm tall, it fits in most mid-tower cases without clearance issues. ## Alternatives
Direct competitors in the same price range include the Arctic Freezer 34 eSports DUO (around ¥6,000) and the ID-COOLING SE-226-XT (around ¥5,500). The Arctic is a single-tower design with dual fans — quieter but with less thermal headroom. The ID-COOLING is a single-tower with six heat pipes, cheaper but not as capable under sustained loads. The Peerless Assassin 120 Mini offers superior dual-tower cooling and a unique white aesthetic that neither competitor provides.

Things to Consider

RAM clearance: The dual-tower design overhangs the first DIMM slot. Use low-profile memory or ensure your RAM height is under 35mm. Case width: Although only 135mm tall, some narrow cases may still have clearance issues. Always check your case's maximum CPU cooler height. TDP limitations: Not suitable for high-end CPUs like Core i9 or Ryzen 9 under heavy all-core loads. For those, consider the larger Peerless Assassin 120 SE or a liquid cooler. Fan cable routing: The 4-pin PWM cable is long enough for most setups, but plan your cable management to keep the build tidy.

Product Disclosure (Amazon)

  • Manufacturer: CORSAIR
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • ASIN: B0D3H73YCJ
  • Note: This article covers a manufacturer-made product based on Amazon listing details.