Thermalright Peerless Assassin 140 Digital White CPU Cooler - Dual

Our review of the Thermalright Peerless Assassin 140 Digital White finds it best suited to desktop builders who want strong cooling capacity paired with a modern visual touch. The cooler's single biggest selling point is its dual-tower layout with two PWM fans and a magnetic digital top cover, which combines sustained airflow with a customizable digital display. Installation targets mainstream ATX cases and both AMD and Intel platforms, so it is a practical choice for those upgrading moderate to high TDP CPUs who also appreciate a neat, programmable top plate.

Key Features

• Dual-tower design: Two stacked fin arrays increase surface area for heat exchange and support sustained cooling under load.
• Dual fans with PWM: One 120mm and one 140mm fan provide balanced airflow and automatic speed control through PWM to respond to temperature changes.
• Six copper heatpipes: Pure copper heatpipes and a copper base improve thermal transfer from the CPU to the fin stacks for better dissipation.
• Digital magnetic top cover: The removable magnetic top plate includes a digital display panel that can be customized via TRCC software for system monitoring and visual flair.
• 165mm height: At 165mm tall, the cooler fits most mainstream ATX cases while leaving room for tall memory modules in many builds.
• Wide platform support: Mounting grommets and brackets cover Intel LGA and AMD AM4/AM5 sockets for broad compatibility.

Who It's For

This cooler is a good match for PC builders looking for a balance of thermal performance and on-case aesthetics, such as gamers or content creators upgrading a midrange to higher-end CPU. The digital display and black finish suit systems where the cooler is visible and part of the visual theme.

It is less appropriate for very compact small-form-factor builds where a 165mm height will not fit, or for users who want out-of-the-box motherboard backplates for certain AMD mounts, since the AMD installation requires the board's original backplane. Extremely overclocked or extreme workstation CPUs may warrant a larger or liquid cooler option.

Pros & Cons

Pros

• Strong heat transfer via six pure copper heatpipes and copper base for effective dissipation.
• Dual 120mm/140mm fans with PWM control deliver variable airflow and reduced noise at low load.
• Magnetic digital top cover adds customizable monitoring and a clean aesthetic without tools.
• 165mm height keeps compatibility with most ATX cases and many tall memory modules.

Cons

• One reported customer experience noted very high CPU temperatures in an edge case; real-world performance may vary by build and mounting quality.
• AMD installation requires using the motherboard's original backplane, which could complicate installs for some users.

Specifications

Fan configuration	One 120mm + one 140mm dual PWM fans
Fan speed	Up to 1850RPM
Heatpipes	6 pure copper heatpipes with copper base
Height	165mm
Compatibility	Intel LGA1700/1851/115x/2011/1200/2066 and AMD AM4/AM5
Top cover	Magnetic digital display panel with 9PIN USB connection
Software	TRCC Control Centre for display and monitoring

Our Verdict

The Peerless Assassin 140 Digital White is a sensible choice for builders who want a capable air cooler with a modern digital element and wide socket support. It pairs solid thermal hardware with user-friendly PWM fans and a configurable display, delivering good value for midrange to high-end desktop systems so long as case clearance and correct mounting procedures are confirmed.

Frequently Asked Questions

Does this cooler fit in most ATX cases?
The cooler is 165mm tall and fits most mainstream ATX cases, but always check case CPU cooler clearance before purchase.

Is the digital display powered by the motherboard?
Yes, the magnetic digital top cover uses a 9PIN USB interface on the motherboard for power and data to the display and TRCC software.

Can it be used on AMD AM4 and AM5?
Yes, the cooler supports AM4 and AM5, but AMD installation requires using the motherboard's original backplane which is not supplied with the cooler.