This article covers Thermalright AssassinX 120 Refined SE CPUエアクーラー.

Overview

The Thermalright AssassinX 120 Refined SE is an entry-level air CPU cooler from the well-known Taiwanese brand Thermalright. It features four 6mm heat pipes and a 120mm PWM fan, supporting CPUs with a TDP of 125 to 225W. With a height of only 148mm, it fits comfortably in most mid-tower cases, offering broad compatibility. This cooler supports Intel LGA115X/1200/1700 and AMD AM4/AM5 sockets. The included mounting kits make installation straightforward even for beginners. Priced around $20–25 USD, it delivers excellent value for budget-conscious builders.

Connectivity & Compatibility

The cooler mounts directly onto the CPU socket. It includes separate mounting hardware for Intel and AMD platforms. The 120mm fan uses a 4-pin PWM connector, allowing automatic speed control via the motherboard's CPU_FAN header. Thermal performance covers CPUs from Core i5/Ryzen 5 up to Core i7/Ryzen 7 at stock settings. However, for overclocked or high-end chips like the Core i9-13900K under full load, this cooler may struggle. It is best suited for stock or mild turbo operation.

Product Info

The Thermalright AssassinX 120 Refined SE was released around 2022 as an entry-to-mid-range air cooler. It competes with the Arctic Freezer 34 and Cooler Master Hyper 212 in the budget segment, offering similar performance at a lower price. Package contents include Intel and AMD mounting kits, a backplate, thermal compound, and a manual. Warranty is typically 1–2 years. It is widely available on and other retailers, with a price range of ¥2,800–¥3,200 (approximately $20–$25).

Best Use Cases

Budget PC builders: Ideal for first-time builders who want reliable cooling without spending extra. Easy installation and sufficient performance for most entry-level to mid-range CPUs. Stock-clock users with mid-range CPUs: Perfect for CPUs like the Core i5-12400 or Ryzen 5 5600 (65–105W TDP). It runs quietly and keeps temperatures in check during daily tasks and gaming. * Compact case owners: With a height of 148mm, it fits in many mid-tower and some compact cases. A great upgrade over the stock cooler for better acoustics and thermals in space-constrained builds.

Product Disclosure (Amazon)

  • Manufacturer: THERMALRIGHT(サーマルライト)
  • Seller: TR-Thermalright-JP
  • Fulfilled by: Amazon
  • ASIN: B0C9C55YLT
  • Note: This article covers a manufacturer-made product based on Amazon listing details.