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Thermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4 AM5/Intel LGA 1700/1150/1151/1200/1851,PC Cooler
Thermalright

Thermalright Peerless Assassin 120 SE CPU Cooler

Bottom line: The Thermalright Peerless Assassin 120 SE CPU Cooler: Dual-tower design with 6 pure copper AGHP heat pipes for strong cooling; main trade-off: tall 155mm heatsink may not clear compact or SFF cases.

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Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Dual-tower design with 6 pure copper AGHP heat pipes for strong cooling
  • ✓ Two 120mm TL-C12C PWM fans move up to 66.17 CFM at 25.6 dB(A) or quieter
  • ✓ Fits AM4, AM5, Intel LGA 1700, 1200, 115X and 1851 sockets
  • ✓ Fan layout leaves RAM clearance; Intel and AMD mounting hardware included

Cons

  • ✗ Tall 155mm heatsink may not clear compact or SFF cases
  • ✗ Air cooler won't match a 360mm AIO on high-TDP overclocked chips
  • ✗ 0.97kg dual-tower puts notable weight on the motherboard
  • ✗ Plain black fans with no RGB lighting

SpecPicks Verdict

SpecPicks scored Thermalright Peerless Assassin 120 SE CPU Cooler using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. Thermalright's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • [Brand Overview] Thermalright is a Taiwan brand with more than 20 years of development. It has a certain popularity in the domestic and foreign markets and has a pivotal influence in the player market. We have been focusing on the research and development of computer accessories. R & D product lines include: CPU air-cooled radiator, case fan, thermal silicone pad, thermal silicone grease, CPU fan controller, anti falling off mounting bracket, support mounting bracket and other commodities
  • [Product specification] Thermalright PA120 SE; CPU Cooler dimensions: 125(L)x135(W)x155(H)mm (4.92x5.31x6.1 inch); heat sink material: aluminum, CPU cooler is equipped with metal fasteners of Intel & AMD platform to achieve better installation, double tower cooling is stronger
  • 【2 PWM Fans】TL-C12C; Standard size PWM fan:120x120x25mm (4.72x4.72x0.98 inches); Product weight:0.97kg(2.1lb); fan speed (RPM):1550rpm±10%; power port: 4pin; Voltage:12V; Air flow:66.17CFM(MAX); Noise Level≤25.6dB(A), leave room for memory-chip(RAM), so that installation of ice cooler cpu is unrestricted
  • 【AGHP technique】6×6mm heat pipes apply AGHP technique, Solve the Inverse gravity effect caused by vertical / horizontal orientation,6 pure copper sintered heat pipes & PWM fan & Pure copper base&Full electroplating reflow welding process, When CPU cooler works, match with ultra-silent airflow fans, aim to extreme CPU cooling performance
  • 【Compatibility】The CPU cooler Socket supports: Intel:115X/1200/1700/17XX AMD:AM4:AM5; For different CPU socket platforms, corresponding mounting plate or fastener parts are provided

Full Specifications

BrandThermalright
ModelPA120 SE 1700-d6
Weight0.97kg
Voltage12 volts
Wattage3.6 watts
MaterialAluminium,Aluminum,Metal,Silicone
Dimensions4.92x5.31x6.1 inch
Unit Count1 Count
Noise Level25.6 db
Part NumberPA120 SE 1700-d6
CompatibilityPC
Material TypeAluminium,Aluminum,Metal,Silicone
Cooling MethodAir
Number of Items1
Number of Packs1
Air Flow Capacity66.17 cfm
Compatible DevicesDesktop
Power Connector Type4-Pin
Maximum Rotational Speed1550 rpm
Item Dimensions L x W x H4.92"L x 5.31"W x 6.1"H
Full listing titleThermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4 AM5/Intel LGA 1700/1150/1151/1200/1851,PC Cooler

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Thermalright Peerless Assassin 120 SE CPU Cooler, 6 Heat Pipes AGHP Technology, Dual 120mm PWM Fans, 1550RPM Speed, for AMD:AM4 AM5/Intel LGA 1700/1150/1151/1200/1851,PC Cooler is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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