This article covers Thermalright Peerless Assassin 120 SE ARGB CPUエアクーラー.

Overview

The Thermalright Peerless Assassin 120 SE ARGB is a dual-tower CPU cooler featuring six 6mm heat pipes and two 120mm ARGB PWM fans. It supports a wide range of sockets including Intel LGA115X/1200/1700 and AMD AM4/AM5, making it compatible with modern Ryzen and Core processors. Despite its impressive 265W TDP cooling capacity, the cooler stands only 155mm tall, fitting most mid-tower cases. The two TL-C12C-S fans operate at up to 1550 RPM with a noise level of 25.6 dBA, offering a great balance between performance and acoustics.

Connectivity & Compatibility

The cooler is compatible with Intel LGA115X/1200/1700 and AMD AM4/AM5 sockets. Its dimensions are 125 x 135 x 155 mm (W x D x H) and it weighs approximately 0.97 kg. The two 120mm PWM fans use standard 4-pin connectors, and the ARGB lighting connects via a 3-pin 5V header for motherboard synchronization. The offset fin stack design provides clearance for tall memory modules, though front fan position may need adjustment with very high-profile RAM. Always verify your case's maximum CPU cooler height (155mm required) and memory clearance before purchase.

Product Info

Released around 2022, the Peerless Assassin 120 SE ARGB remains a popular choice in the mid-high performance segment. The typical retail price in Japan is around ¥4,000–¥5,000 (note: the price of ¥27,350 appears to be a third-party inflated listing; standard pricing is much lower). The package includes mounting kits for Intel and AMD, a backplate, thermal paste, fan clips, and an ARGB controller (depending on version). Warranty generally covers 1–2 years. This cooler is widely regarded as one of the best value air coolers, often competing with premium models at a fraction of the cost.

Best Use Cases

This cooler is ideal for users building a quiet, high-performance air-cooled system with mid-range to high-end CPUs like an Intel Core i5/i7 or AMD Ryzen 5/7. It's also a great alternative to liquid cooling for those who want excellent performance without the risk of pump failure or leaks. If you're building a themed PC with RGB lighting, the ARGB fans add a customizable aesthetic. However, ensure your case has at least 160mm of CPU cooler clearance (the cooler is 155mm) and that your RAM height is not excessive.

Product Disclosure (Amazon)

  • Manufacturer: THERMALRIGHT(サーマルライト)
  • Seller: URUNEXUS（ウルネクサス）Global Industrial & Lifestyle
  • Fulfilled by: URUNEXUS（ウルネクサス）Global Industrial & Lifestyle
  • ASIN: B0D3CKYFSM
  • Note: This article covers a manufacturer-made product based on Amazon listing details.