The ICK SMD N21 MI with Heatsink is an extruded, grilled, natural-colored aluminum heatsink with a length of 21mm, a width of 8mm, and a height of 6mm, with a thermal resistance of 33K/W. It is manufactured by Fisher. It is designed for use with a variety of potential components, such as CPUs, GPUs, motherboards, and other electronic components that generate a large amount of heat and need to be cooled. Depending on its usage, the heatsink may need to be attached to a fan or radiator for maximum heat dissipation.