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Thermalrlght Peerless Assassin 120 SE CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12C PWM Fans, Aluminum Heatsink Cover, AGHP Technology, for AMD AM4 AM5/Intel LGA 1700/1150/1151/1200/1851（PA120SE）
THERMALRLGHT

Thermalrlght Peerless Assassin 120 SE CPU Air Cooler

Bottom line: The Thermalrlght Peerless Assassin 120 SE CPU Air Cooler is a specs-and-price decision rather than a crowd-consensus one in the cooling & fans category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

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

  • ✓ Backed by THERMALRLGHT's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

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SpecPicks Verdict

SpecPicks scored Thermalrlght Peerless Assassin 120 SE CPU Air Cooler using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. THERMALRLGHT'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

  • [Better cooling] With soldered heatsink base and heat pipes, and anodized brushed black top cover and Nickel-plated heat pipes, Peerless Assassin 120 SE offers greater look and stable performance output. The heatsink has offset asymmetric layout, which allows better graphics card and motherboard compatibility.
  • [Product specification] Peerless Assassin 120 SE CPU Cooler; dimensions: 125(L)x135(W)x155(H)mm (4.92x5.31x6.1 inch); Heat sink material: Aluminum and Copper, CPU cooler is equipped with SS2 install system and metal pressure plate on heatsink to achieve better contact with CPU, and more heat exchange surface area with dual tower heatsink config. (Note: Please check your case and motherboard compatibility with cooler.)
  • [2 High Performance Fans] Model:TL-C12C; High Airflow Performance; Standard 120mm fan:120x120x25mm (4.72x4.72x0.98 inches); Fan speed (RPM):1550rpm±10%; Fan connector: 4pin PWM; Voltage:12V DC; Rated Air flow:66.17CFM(MAX); Rated Noise Level≤25.6dB(A), Having cutout on fin for fitting RAM modules, for better compatibility.
  • [AGHP Technology] Six 6mm heat pipes comes with AGHP technology, solving the gravity effect on vertical / horizontal heatsink install orientation. 6 pure Copper heat pipes are soldered on Copper base, to achieve rapid heat exchange with help of dual high airflow fans.
  • [Compatibility] CPU cooler motherboard support: Intel: LGA1150/1151/1155/1156/1200/1700 AMD:AM4/AM5 (Note: To install on AM4 and AM5 motherboard, you need to use the original motherboard's built-in backplate for installation, which is not included with this product)

Full Specifications

BrandTHERMALRLGHT
ModelPA120SE-D3-A
Voltage12 Volts
Wattage2.88 watts
MaterialAluminum
Dimensions4.92x5.31x6.1 inch
Unit Count1.0 Count
Noise Level25.6 Decibels
Part NumberPA120SE-D3-A
Material TypeAluminum
Cooling MethodAir
Number of Items1
Air Flow Capacity66.17 Cubic Feet Per Minute
Compatible DevicesDesktop
Included ComponentsCPU COOLER
Power Connector Type4-Pin
Maximum Rotational Speed1550 RPM
Item Dimensions L x W x H6.1"L x 4.92"W x 5.31"H
Full listing titleThermalrlght Peerless Assassin 120 SE CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12C PWM Fans, Aluminum Heatsink Cover, AGHP Technology, for AMD AM4 AM5/Intel LGA 1700/1150/1151/1200/1851（PA120SE）

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Thermalrlght Peerless Assassin 120 SE CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12C PWM Fans, Aluminum Heatsink Cover, AGHP Technology, for AMD AM4 AM5/Intel LGA 1700/1150/1151/1200/1851（PA120SE） 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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Thermalrlght Peerless Assassin 120 SE CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12C PWM Fans, Aluminum Heatsink Cover, AGHP Technology, for AMD AM4 AM5/Intel LGA 1700/1150/1151/1200/1851（PA120SE）
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