This article covers Thermalright ピアレスアサシン 90 SE CPUクーラー. The Thermalright Peerless Assassin 90 SE (PA90 SE) is a compact dual-tower CPU air cooler.

With four 6mm heatpipes and a 90mm PWM fan, it stands just 110mm tall, making it an excellent fit for small form factor builds. The 4th-generation AGHP (Anti-Gravity Heat Pipe) technology ensures consistent cooling performance regardless of orientation.

The cooler's compact design also avoids interfering with memory slots, even on boards with tall RAM heatsinks. Socket support covers Intel LGA 1700/1851/1150/1151/1200 and AMD AM4/AM5.

The 90mm fan uses a 4-pin PWM header for automatic speed control from the motherboard. At 110mm total height, the cooler fits into most Mini-ITX and Micro-ATX cases, but always check your case's maximum CPU cooler clearance.

Memory clearance is generous – even tall RAM modules should fit without issue. The Peerless Assassin 90 SE targets entry-level to mid-range CPUs, offering effective cooling for processors like the Core i5 or Ryzen 5.

Released in 2024, it builds on Thermalright's extensive air-cooling heritage.Check the retailer's page for the latest price.

The all-aluminum fin stack sits on a CNC-machined copper base, with nickel-plated heatpipes for corrosion resistance. Availability is good through major online retailers and Thermalright's own store.

Small form factor builders: The 110mm height fits many ITX and small cases without sacrificing cooling capability. Users who value quiet operation: The S-FDB bearing fan keeps noise to 23.85 dBA even at 2200 RPM, making it suitable for silent PCs.

  • Budget-conscious builders: The PA90 SE delivers solid thermal performance at a competitive price, ideal for mainstream gaming or productivity rigs where a large tower cooler won't fit.

Product Disclosure (Amazon)

  • Manufacturer: THERMALRIGHT(サーマルライト)
  • Seller: いいものをお客様に
  • Fulfilled by: いいものをお客様に
  • ASIN: B0CZRZVMQ3
  • Note: This article covers a manufacturer-made product based on Amazon listing details.