Thermalright Peerless Assassin 90 SE Black CPU Air Cooler

Thermalright Peerless Assassin 90 SE Black is a compact dual-tower CPU air cooler with a 110 mm overall height and support listed for a range of AMD and Intel sockets. Its short height may suit builds with limited cooler clearance, while the listing's high-speed fan and four heat pipes are manufacturer claims rather than independently verified performance results.

At a glance

Dual-tower aluminium fin stack with copper base and four heat pipes, according to the product details.
The listed 110 mm height is a useful clearance figure for smaller or space-constrained cases.
A 92 mm PWM fan is described as automatically adjusting speed with motherboard temperature. The listing also says DC mode allows fixed-speed adjustment.

Price

€21.52Save 20%

Reference price: ~~€26.90~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Low 110 mm stated height can open up case options where taller coolers may not fit.
Socket support includes current AMD AM4/AM5 and several Intel LGA platforms.
PWM temperature-based fan control is offered without requiring manual speed settings.

Cons

A 92 mm fan is smaller than the 110 mm fan suggested by the product title, so confirm the exact fan configuration before purchase.

Technical specifications

14 specifications

Identity
Brand	Thermalright
Model	Peerless Assassin 90 SE Black

Cooling design
Cooler type	CPU air cooler
Tower design	Dual tower
Heatsink material	Aluminium, copper
Heat pipes	4 heat pipes with AGHP technology
Fan size	92 mm
Fan speed	2200 rpm
Fan control	PWM
Thermal paste	TF4

Dimensions and installation
Dimensions	9.4L x 9.4W x 11H centimetres
Mounting types listed	Chassis Mount
CPU socket compatibility	Intel LGA 1851/1700/115X/1200, AMD AM4/AM5
Sockets listed individually	LGA 1851, LGA 1700, LGA 1150, LGA 1151, LGA 1155, LGA 1156, LGA 1200, AM4, AM5

What to know before buying

Listing details to confirm

The listing is inconsistent about fan size: the title says 110mm High CPU Fan, while the feature details specify a 92 mm fan. It also describes the cooler as 110 mm high and gives dimensions of 9.4L x 9.4W x 11H centimetres. Confirm the fan and clearance dimensions for the selected listing before buying. Performance and noise claims are manufacturer statements, not independently verified results.

What’s in the box

Included

CPU cooler

Who is it for?

A good fit for

PC builders who need a short, 110 mm-high air cooler and have a compatible AMD or Intel socket.
Buyers looking for a dual-tower design with PWM fan control and a stated four-heat-pipe heatsink.

Less suited to

Buyers who need independently verified cooling or noise performance figures.
Anyone whose build requires a larger fan unless they have confirmed the exact fan configuration.

Thermalright Peerless Assassin 90 SE Black CPU Air Cooler · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 45 ratings

5 stars90%90%
4 stars4%4%
3 stars3%3%
2 stars0%0%
1 star3%3%

Aggregate ratings are strongly weighted towards five-star responses, but a small share of ratings are one-star or mid-range. Without written feedback, those figures cannot show what customers liked or disliked, or how the cooler performs in practice. Use the stated socket support and 110 mm height for fit decisions, and treat cooling and noise claims as unverified listing information.

Frequently asked questions

What sockets does the Peerless Assassin 90 SE Black support?

The listing gives Intel LGA 1851/1700/115X/1200 and AMD AM4/AM5 compatibility. It also lists LGA 1150, 1151, 1155 and 1156 individually.

How tall is this CPU cooler?

The listing states 110 mm overall height and gives dimensions of 9.4L x 9.4W x 11H centimetres. Check your case clearance and note the listing's inconsistent fan-size wording.

What fan does the listing specify?

The feature details specify a 92 mm PWM fan with a listed maximum speed of 2200 rpm. The title instead says 110mm High CPU Fan, so confirm the supplied configuration before purchasing.