Thermalright introduced the Assassin X 90 SE, a 118mm tall compact side-flow CPU cooler. The heat pipes are 6mm x 4mm in size and are implemented using a direct touch approach, which is unusual for Thermalright CPU coolers.

Furthermore, interference with the memory slot is reduced by inserting the heat pipe with an offset. Assassin X90SE Cooling fan diameter is 92mm "TL-G9B", fan speed is maximum 2,400rpm10%, air volume is maximum 43CFM, static pressure is maximum 1.51mmH2O, noise level is 27.3dBA, bearing is S-FDB Bearing, connector is 4pin Adopt PWM. The heatsink is 52mm wide, 94mm deep, and 118mm high, and it weighs 360g. Intel LGA115x/1200/1700 and AMD Socket AM5/AM4 are supported platforms.