Thermalright Peerless Assassin 140 Black CPU Cooler Dual-Tower

Thermalright Peerless Assassin 140 Black is a dual-tower air cooler for CPUs, aimed at mid-range to serious gaming and work configurations. The combination of two fans and a large dual radiator gives it serious cooling capacity without getting into the complexity of a water solution. It works with a wide range of sockets, including LGA 1700, LGA 1851, AM4, and AM5, making it a good option for future upgrades. Its black design fits well into visually clean and themed builds.

What you get

Here you have a dual-tower design with 2 included fans, which increases efficiency: one pushes air through the radiator, while the other pulls it out, thus maintaining stable temperatures under load. With fans sized 120 x 120 x 25 mm and 140 x 140 x 27 mm, the coverage of the fins on the radiator is optimized for better heat exchange. The maximum speed of 1500 RPM is balanced – high enough for serious cooling without entering extreme revolutions. The connector is standard 4 PIN, so you can use PWM control from the motherboard and adjust the fan curve according to temperatures. The declared airflow of 143.97 CFM shows that the cooler can handle hotter CPUs if you have good overall airflow in the case.

• Dual cooler design (Dual-Tower) allows for a larger area for heat dissipation and more stable temperatures under prolonged load.
• Air cooling means easy installation and maintenance, with no risk of leaks and no need for pumps and additional control.
• Wide compatibility with CPU sockets – LGA 1700, LGA 1851, LGA 2066, LGA 2011/2011-v3, LGA 1200, LGA 1150/1151/1155/1156, AM4, AM5 – ideal if you plan upgrades without changing the cooler.
• Combination of fans sized 120 x 120 x 25 mm and 140 x 140 x 27 mm for better coverage of the radiator and optimized airflow.
• 2 included fans allow for a push–pull configuration that improves heat dissipation compared to a single fan.
• Speed up to 1500 RPM provides a good balance between performance and noise, especially with a properly set PWM profile.
• 143.97 CFM airflow is a serious value for an air cooler and helps keep the CPU cooler during heavy tasks and gaming.

Who it is suitable for

Peerless Assassin 140 Black is suitable if you are building a gaming or productive build and want serious air cooling without switching to water. It is a good choice for modern CPUs on AM5 and LGA 1700 / LGA 1851, especially if you plan long gaming sessions or rendering. If you are aiming for ultra-compact ITX cases with limited height for the cooler, you will need to carefully check compatibility here.

The strength of this model is the combination of a dual radiator, two fans, and wide socket support, giving you plenty of cooling capacity and flexibility for future upgrades without dealing with the complications of water cooling.