Placas de expansão disponíveis para microcomputadores, tais como modems, expansões de memórias etc.
Meaning
An add-in card is a printed circuit board that can be inserted into an expansion slot on a computer's motherboard to add new or upgraded functionality to the system. Examples of add-in cards include graphics cards, sound cards, network interface cards, and RAID controllers. They allow for customization and upgradability of a computer system without the need for replacing the entire motherboard.