Thermalright

Thermalright Peerless Assassin 140 SE CPU Air Cooler with 6 Heat Pipes, 28mm Thick Performance GradeFan, 158mm High CPU Cooling, for AM5/AM4, Intel LGA1851/1700/1150/1151/1155/1156/1200

Name: Thermalright Peerless Assassin 140 SE CPU Air Cooler with 6 Heat Pipes, 28mm Thick Performance GradeFan, 158mm High CPU Cooling, for AM5/AM4, Intel
Brand: Thermalright
SKU: B0FV8K4SWY
Price: 41.39 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-23

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$41.39

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View Current Price on Amazon → Compare to similar cooling & fans

*Price sourced from Amazon.com. Last updated 2026-09-20. Price and availability subject to change.

Bottom line: The Thermalright Peerless Assassin 140 SE CPU Air Cooler with 6 Heat Pipes, 28mm Thick Performance GradeFan, 158mm High CPU Cooling, for AM5/AM4, Intel LGA1851/1700/1150/1151/1155/1156/1200 is a specs-and-price decision rather than a crowd-consensus one in the cooling & fans category, priced around $41.39. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

Pros & Cons

Pros

✓ Backed by Thermalright's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

[Heat Dissipation Combination] The CPU heat sink is a dual tower dual fan structure, with FIN fins on the black top, 6 fully electroplated anti-oxidation heat pipes, and a finely carved copper bottom. It is equipped with 2 PWM fans, which can easily dissipate the temperature of the CPU. [Product Specifications] Model: Peerless Assassin 140 SE, size: 140x160x158mm, heat sink material: aluminum,fan size: 120x120x28mm/140x140x27mm,fan speed: 1850RPM+10%/1500RPM+10%, Wind pressure: 2.21MM H2O, operating noise≤29.5db (A)/25.6db (A), fan interface: 4pin pwm, Combined with 2 pwm fans, can bring…

SpecPicks Verdict

SpecPicks scored Thermalright Peerless Assassin 140 SE CPU Air Cooler with 6 Heat… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Key Features

[Heat Dissipation Combination] The CPU heat sink is a dual tower dual fan structure, with FIN fins on the black top, 6 fully electroplated anti-oxidation heat pipes, and a finely carved copper bottom. It is equipped with 2 PWM fans, which can easily dissipate the temperature of the CPU.
[Product Specifications] Model: Peerless Assassin 140 SE, size: 140x160x158mm, heat sink material: aluminum,fan size: 120x120x28mm/140x140x27mm,fan speed: 1850RPM+10%/1500RPM+10%, Wind pressure: 2.21MM H2O, operating noise≤29.5db (A)/25.6db (A), fan interface: 4pin pwm, Combined with 2 pwm fans, can bring good heat dissipation effect.
[158mm Heat Dissipation Height]The overall height of the cpu cooling is 158mm, which is compatible with more chassis. The main body is made of all aluminum fins, which can provide a larger heat dissipation area
[Dual CPU Fan Cooling]The matched 120mm and 140mm fans have a speed of up to 1850RPM and 1500RPM, and an air volume of 88.89CFM and 77.8CFM, which can provide good heat dissipation effect. The fans have PWM function and can adjust the speed according to the motherboard temperature without manual adjustment. The attached fan hook is fixed on the twin tower radiator.
[Detail Optimization] The cpu cooler comes with a 1-to-2-wire pwm control line, and the dual fans can achieve PWM synchronous speed control. The accompanying SS2 buckle is compatible with multiple specifications and can accommodate multiple CPU models. It is easy to install and remove, and easy to maintain and upgrade.

Full Specifications

Brand	Thermalright
Color	PA140SE
Model	PA140SE-D2
UnitCount	1
Manufacturer	THERMALRIGHT
ItemPartNumber	PA140SE-D2

Ready to buy?

Thermalright Peerless Assassin 140 SE CPU Air Cooler with 6 Heat Pipes, 28mm Thick Performance GradeFan, 158mm High CPU Cooling, for AM5/AM4, Intel LGA1851/1700/1150/1151/1155/1156/1200 is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-09-20. Price and availability subject to change.