Thermalright Peerless Assassin 120 SE V3 CPU Air Cooler
The Thermalright Peerless Assassin 120 SE V3 CPU Air Cooler is a tower cooler with six 6 mm heat pipes and a nickel-plated C1100 pure copper base. It stands 155 mm tall and supports AM5, AM4, LGA1851, LGA1700, LGA1200 and LGA115x sockets. Its fan runs up to 2000 RPM on a 4-pin PWM connector.
It suits builders who want quiet, maintenance-free air cooling on a current AMD or Intel platform without the pump and tubing of a liquid cooler. Browse more air CPU coolers if you need a shorter or larger option.
Highlights
- Six 6 mm heat pipes
- C1100 pure copper base, nickel plated
- 155 mm tall; L125 x W110 x H155 mm without fan
- Supports AM5, AM4, LGA1851, LGA1700, LGA1200 and LGA115x
- Fan up to 2000 RPM ±10%, 70.84 CFM max airflow, 29.8 dBA
- 4-pin PWM connector with S-FDB bearing
Best for
- AMD AM5 and AM4 or Intel LGA1851 and LGA1700 gaming builds
- Quiet everyday and work PCs that need reliable air cooling
- Upgrading from a stock CPU cooler
- Builders who prefer air cooling over AIO liquid coolers
Specifications
| Dimension | L125 mm x W110 mm x H155 mm(Without Fan) |
|---|---|
| Heat pipes | 6mm heatpipe x 6 units |
| Copper Base | C1100 Pure copper nickel plated |
| Rated Speed | 2000 RPM±10% (MAX) |
| Noise Level | 29.8 dBA |
| Air Flow | 70.84 CFM (MAX) |
| Air Pressure | 2.63 mm H2O (MAX) |
| Ampere | 0.17 A |
| Connector | 4 Pin (PWM Fan connector) |
| Bearing Type | S-FDB Bearing |
Compatibility and related parts
Before buying, confirm your case has at least 155 mm of CPU cooler clearance by checking its specs among our PC cases, and that your CPU uses one of the supported sockets (AM5, AM4, LGA1851, LGA1700, LGA1200 or LGA115x) from our processors (CPUs). Plug the fan into a 4-pin PWM header on your motherboard, and keep fresh thermal paste and pads on hand for reinstalls. The PC builder checks compatibility for you, and assembly and testing are free when you buy it as part of a PC build.
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Warranty
Warranty
- All products come with a 1-year official local warranty, unless mentioned otherwise.
- Accessories (such as cables, covers, power banks, etc.) are not covered under warranty.
- Please check your item at the time of delivery—you may refuse the order if you notice any damage.
- The warranty provided is an official local manufacturer warranty.
- Apple products include both local and international warranty, as per Apple’s policy.
Shipping & Returns
Shipping & Returns
• Shipping: Orders are processed within 0–2 business days. Standard delivery takes 0–5 business days depending on your location.
• Returns: You may return or exchange products within 10 days of receiving your order. Items must be in original condition with proof of purchase.
If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.
No advance payments required—even for preorders. Pay on delivery or cancel anytime, hassle-free.
FAQs
Will the Peerless Assassin 120 SE V3 fit in my case?
Will the Peerless Assassin 120 SE V3 fit in my case?
Which CPU sockets does it support?
Which CPU sockets does it support?
How loud is the fan?
How loud is the fan?
What fan header does it need?
What fan header does it need?
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