Thermalright introduced the Burst Assassin 120 EVO DARK, a performance-segment air CPU cooler. The cooler relies on a conventional D-type aluminium fin-stack heatsink that's ventilated by a pair of fans in push-pull configuration. Its design involves a nickel-plated copper base from which six 6 mm-thick copper heat pipes draw heat, conveying it to an aluminium fin-stack. This 52 mm-thick fin-stack has fins with jagged edges to increase air turbulence, and heat dissipation. The stack is covered by a metal top-plate with a brushed aluminium finish. Ventilating the heatsink is a pair of 120 mm fans.

Unlike most other companies, Thermalright includes two different kinds of 120 mm fans. The first one is a Thermalright TL-C12B V2 meant to be installed in the "push" position, and the second one is a TL-C12RB V2 intended for the "pull" position. Both fans feature fluid dynamic bearings, 4-pin PWM inputs, and top speeds of 1,500 RPM; however the push fan offers 66.17 CFM of maximum airflow, while the pull fan does 58 CFM. The static pressure ratings of both fans are 1.58 mm H₂O, and both their maximum noise outputs are rated at 25.6 dBA. With the two fans in place, the Thermalright Burst Assassin 120 EVO DARK measures 124 mm x 156 mm x 102 mm (WxHxD). The company didn't mention weight. Among the CPU socket types supported are LGA1700, AM5, AM4, and LGA1200/115x.