A Heat Sink is a metal plate used for dissipating heat, typically made of aluminum or copper. It features multiple thin plates or fins to increase the surface area, making it easier for heat to dissipate. Heat sinks are commonly used in electronic devices, car engines, air conditioners, and Other equipment that requires heat dissipation. They can dissipate heat through natural convection or forced convection (such as with a fan) to maintain the normal operating temperature of the equipment.