The Peerless Assassin 120 SE V3 from Thermalright is a powerful CPU cooler designed for efficient air cooling. With a fan diameter of 120 mm and a maximum rotational speed of 2000 RPM, this cooler delivers excellent cooling performance suitable for demanding applications and gaming scenarios. It features six heat pipes that ensure effective heat dissipation, keeping the CPU temperature low. The Sealed Precision FDB bearing mechanism provides quiet operation, while the maximum air pressure of 2.63 mmH2O and an airflow of 70.84 cfm enable optimal air circulation. Its compact design, with a height of 157 mm and a width of 110 mm, makes it a versatile choice for various case configurations. The Peerless Assassin 120 SE V3 is compatible with multiple processor sockets, including LGA 1200, LGA 1700, LGA 1851, Socket AM4, and AM5, making it a flexible solution for different systems.
Socket | AM4, AM5, LGA 1200, LGA 1700, LGA 1851 |
Diameter | 120 mm |
Number of fans | 2x |
Airflow | 120.36 m³/h |
power connector | 4-pin |
Height (with fan) | 157 mm |
Item number | 63945964 |
Manufacturer | Thermalright |
Category | CPU coolers |
Manufacturer no. | 814256019347 |
Release date | 16.10.2025 |
Colour | Black |
Exact colour description | Black, Black |
CPU cooler design | Dual Tower |
Socket | AM4, AM5, LGA 1200, LGA 1700, LGA 1851 |
Supported fan sizes | 120mm |
Number of heatpipes | 6 |
Diameter heat pipe | 6 mm |
Material cooling fins | Copper |
Diameter | 120 mm |
Number of fans | 2x |
Max. Speed | 2000 RPM |
Airflow | 120.36 m³/h |
Static pressure | 25.79 Pa |
Max. noise level | 29.80 dB |
power connector | 4-pin |
CO₂ emissions | 26,9 kg |
Climate contribution | EUR 0,67 |
Width (with fan) | 120 mm |
Length (with fan) | 120 mm |
Height (with fan) | 157 mm |
Product Safety |
Length | 24 cm |
Width | 21 cm |
Height | 15.50 cm |
Weight | 1.40 kg |
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The Thermalright twin-tower cooler is currently recommended in many DIY forums - and rightly so. In terms of cooling performance, it is on a par with the Noctua cooler, which costs a good twice as much. You don't want to run the dual fans above 1200 rpm, because then they quickly become loud...
With the Peerless Assassin 120 SE, Thermalright continues to offer a good overall package for a small budget. Despite its size, the CPU cooler can be easily and securely mounted on many different sockets and has a discreet black and silver look. The Peerless Assassin 120 SE is also available in white or with RGB fans, and at a price that is barely higher...