This article covers Thermalright (サーマルライト) Peerless Assassin 120 Mini Black CPUエアクーラー ヒートパイプ6本 120mm TL-D12B PWMファン 高さ135mm ダブルタワークーラー AMD AM4 AM5.

Overview

The Thermalright Peerless Assassin 120 Mini Black is a compact dual-tower CPU air cooler designed for systems with limited case height. Measuring just 135mm tall, it uses six 6mm heat pipes (AGHP Gen4 technology) and a 120mm TL-D12B PWM fan to deliver efficient heat dissipation for mid-range processors. It supports Intel LGA1851/1700/1200/115x and AMD AM5/AM4 sockets, making it a versatile choice for custom PC builds.

Connectivity & Compatibility

This cooler is compatible with Intel LGA1851, LGA1700, LGA1200, LGA1150/1151/1155/1156, and AMD AM4, AM5 sockets. The included mounting kit provides hardware for each platform. With a height of 135mm, it fits comfortably in most mid-tower cases, but users should verify their case’s maximum CPU cooler clearance before purchase. The fan connects via a standard 4-pin PWM header for automatic speed control.

Product Info

Priced at approximately ¥7,701 on Japan, the Peerless Assassin 120 Mini Black sits in the mid-range segment, offering strong performance for the cost. Thermalright is a well-known Taiwanese cooling brand, and this model continues the Peerless Assassin tradition of reliable air cooling. The standard warranty is two years (check manufacturer site for details). Included accessories: one TL-D12B fan, mounting hardware, thermal paste, and instruction manual.

Best Use Cases

This cooler is ideal for users building in compact cases who need effective air cooling without sacrificing RAM clearance. It pairs well with Core i5 or Ryzen 5 CPUs for quiet, capable thermal management. For higher‑end CPUs (Core i7/i9 or Ryzen 7/9), a larger cooler may be necessary for peak loads.

Product Disclosure (Amazon)

  • Manufacturer: THERMALRIGHT(サーマルライト)
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0CQQYJC5M
  • Note: This article covers a manufacturer-made product based on Amazon listing details.