Thermalright
Thermalright Peerless Assassin 140 SE CPU Air Cooler
Bottom line: The Thermalright Peerless Assassin 140 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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Pros & Cons
Pros
- ✓ Backed by Thermalright'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
SpecPicks Verdict
SpecPicks scored Thermalright Peerless Assassin 140 SE CPU Air 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
- Product Specifications: Model Peerless Assassin 140 SE with dimensions 140x160x158mm, aluminum heat sink material, dual fan configuration with 120x120x28mm and 140x140x27mm sizes, fan speeds of 1850RPM10% and 1500RPM10%, wind pressure of 2.21MM H2O, operating noise levels at or below 29.5dB(A) and 25.6dB(A), 4pin PWM fan interface for effective heat dissipation
- High Memory Compatibility Design: The symmetrical mecha fin appearance of the CPU heat sink accommodates high armor memory modules and graphics cards, while the dual tower heat sink structure enhances overall heat dissipation performance
- Dual Fan Cooling System: The matched 120mm and 140mm fans operate at speeds up to 1850RPM and 1500RPM with air volumes of 88.89CFM and 77.8CFM respectively, featuring PWM function for automatic speed adjustment based on motherboard temperature without manual intervention, secured with included fan hooks on the twin tower radiator
- Compact 158mm Heat Dissipation Height: The overall height of 158mm ensures compatibility with a wide range of chassis, featuring all-aluminum fin construction that provides an expanded heat dissipation surface area for efficient thermal management
- Optimized Installation Details: The cpu cooler includes a 1-to-2-wire PWM control line enabling dual fan synchronous speed control, accompanied by SS2 mounting bracket compatible with multiple specifications for easy installation, removal, maintenance and upgrades across various CPU models
- Wide Platform Compatibility: Heat sink supports dual platform installations including Intel LGA 1851/1700/1150/1151/1155/1156/1200 and AMD AM4/AM5 sockets, complete with all necessary installation accessories and comprehensive installation video or manual guidance, with AMD platform installation requiring the original motherboard backplane
Full Specifications
| Brand | Thermalright |
|---|---|
| Voltage | 12 Volts |
| Material | Aluminum |
| Dimensions | 140x160x158mm |
| Unit Count | 1.0 Count |
| Noise Level | 29.5 Decibels |
| Part Number | PA140 SE D6 |
| Material Type | Aluminum |
| Cooling Method | Air |
| Number of Items | 1 |
| Air Flow Capacity | 88.89 Cubic Feet Per Minute |
| Compatible Devices | Desktop |
| Included Components | Cpu cooler |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 1850 RPM |
| Item Dimensions L x W x H | 6.3"L x 5.51"W x 6.22"H |
| Full listing title | Thermalright Peerless Assassin 140 SE CPU Air Cooler, High Performance Twin Tower Radiator with 12cm and 14cm CPU Fan, Come with Top Sheet, for AMD: AM4/AM5, Intel LGA1150/1151/1200/1851/1700 |
Ready to buy?
Thermalright Peerless Assassin 140 SE CPU Air Cooler, High Performance Twin Tower Radiator with 12cm and 14cm CPU Fan, Come with Top Sheet, for AMD: AM4/AM5, Intel LGA1150/1151/1200/1851/1700 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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