Thermalright Assassin X 120 Digital White CPU Cooler, 120 mm PWM Fan

Thermalright Assassin X 120 Digital White is an air CPU cooler with a top display board, four heat pipes and a 120 mm PWM fan. Its claimed socket support covers AM4/AM5 and several Intel LGA platforms, while the 151 mm height makes case clearance worth checking before purchase.

At a glance

Four 6 mm heat pipes are described as directly contacting the CPU, with a copper base and aluminium fins.
The top display is claimed to show CPU and graphics-card temperature and usage parameters when used with TRCC software.
The manufacturer states a 151 mm cooler height and notes the AMD platform requires the original motherboard backplane.
A 4-pin PWM fan connection and 9-pin motherboard USB connection are specified.

Price

€21.52Save 20%

Reference price: ~~€26.90~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

The specified socket list covers AM4/AM5 and a range of Intel LGA platforms, giving buyers several common platform options.
The digital top display offers a way to view CPU and graphics-card parameters when connected and configured as described.
The stated 151 mm height gives a concrete case-clearance figure to compare against a chassis specification.

Technical specifications

19 specifications

Identity
Brand	TR-Thermalright
Model	Assassin X 120 Digital White

Cooling and fan
Cooling method	Air
Heat pipes	6 mm x 4 pieces
Fan model	TL-P12W
Fan size	120Lx120Wx25H (mm)
Fan speed	2000 rpm ± 10%
Fan noise	≤ 29.8 dBA
Air volume	70.84CFM
Air pressure	2.63 mm/H2O
Bearing type	S-FDB
Voltage	DC 12 V
Power interface	4PIN PWM
Digital screen interface	Motherboard 9-Pin USB

Dimensions and materials
Product size	120 x 71 x 151 mm
Radiator material	pure copper heat pipe + aluminium fins
Material listed	Aluminum

Compatibility and connection
Supported CPU sockets	Supports Intel LGA1150/1151/1151/1155/1156/1200/1700/1851,AMD AM4/AM5
Compatible devices	Desktop

What to know before buying

Listing details to confirm

The listing gives dimensions as both 120 x 71 x 151 mm and 12L x 7.1W x 15.1H centimetres, and describes fan noise as both 29.8 Decibels and ≤ 29.8 dBA. It also differs on heat-pipe presentation, calling them 4 x 6 mm pipes in the title and description but listing four 6 mm pipes in the details. Check the exact dimensions, noise condition and pipe specification for the selected listing. The AMD installation note says to use the original motherboard backplane. Compatibility claims do not confirm clearance for a particular case or memory layout.

What’s in the box

Included

CPU air cooler
CPU fan
Close

Who is it for?

A good fit for

Desktop builders who want an air cooler with a digital top display and listed support for AM4/AM5 or compatible Intel LGA sockets.
Buyers comparing cooler height against a case limit of at least the stated 151 mm.

Less suited to

Buyers who need confirmed fitment for a specific case, motherboard, RAM layout or graphics-card arrangement without checking those clearances first.
Buyers who need an independently measured noise or cooling-performance result.

Thermalright Assassin X 120 Digital White CPU Cooler, 120 mm PWM Fan · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 7 ratings

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The supplied evidence contains aggregate ratings only, with a uniformly positive distribution across a small sample. That is encouraging but cannot establish how the cooler performs, sounds or fits in a particular build, and it does not identify what customers valued.

Frequently asked questions

Which CPU sockets does the listing say this cooler supports?

It lists AMD AM4 and AM5, plus Intel LGA1150, 1151, 1155, 1156, 1200, 1700 and 1851. Confirm the exact motherboard and mounting requirements before buying.

How tall is the cooler?

The product description states 120 x 71 x 151 mm. The listing also gives centimetre dimensions as 12L x 7.1W x 15.1H, so check case clearance against the selected listing.

What does the digital display connect to?

The technical details specify a motherboard 9-pin USB interface, and the feature claim says TRCC software is used to display CPU and graphics-card parameters.

Does AMD installation require anything specific?

The compatibility note says AMD installation requires the original motherboard backplane.