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

Overview

The Thermalright Peerless Assassin 120 SE is a dual-tower CPU air cooler featuring six 6mm heat pipes and two 120mm PWM fans. It delivers cooling performance capable of handling mid-to-high-end CPUs while remaining exceptionally affordable, often priced under $40. The two TL-C12C fans provide up to 66.17 CFM of airflow with a noise level of just 25.6 dBA, ensuring quiet operation. This cooler supports Intel LGA115X/1200/1700/17XX and AMD AM4 sockets, offering broad compatibility. AGHP (Anti-Gravity Heat Pipe) technology minimizes performance loss from orientation, making it suitable for both vertical and horizontal mounting.

Connectivity & Compatibility

Socket support includes Intel LGA115X/1200/1700/17XX and AMD AM4. Official AM5 compatibility is not stated, but the AM4 mounting kit may work on some AM5 boards. The package includes full mounting hardware for both platforms, with a backplate and brackets. Memory clearance is designed to avoid interfering with standard RAM modules, even those with heat spreaders. However, users with very tall DIMMs or oversized motherboard VRM heatsinks should verify clearance before installation. The cooler height is 155 mm, fitting most mid-tower cases.

Product Info

Released in late 2021, the Peerless Assassin 120 SE quickly became a staple in the value air-cooler segment. It occupies the entry-to-mid-high tier, offering performance comparable to premium air coolers at a fraction of the cost. Included accessories: mounting kits for Intel and AMD, backplate, TF7 thermal paste, and an installation manual. The warranty period is typically 2 years from the manufacturer.

Best Use Cases

Budget-conscious gamers building PCs around Core i5 or Ryzen 5 will appreciate the excellent cooling-per-dollar ratio. The cooler runs quietly even under load, making it ideal for silent operation in gaming rigs. First-time builders benefit from the straightforward mounting process and compact 155 mm height, which fits most standard cases without clearance issues. Content creators performing long render or encode sessions can rely on the 120–265 W TDP capacity to maintain stable temperatures on mid-range CPUs.

Product Disclosure (Amazon)

  • Manufacturer: Seasonic
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0DWDTQB37
  • Note: This article covers a manufacturer-made product based on Amazon listing details.