Definitions for "Expansion cards"
Keywords:  motherboard, slots, modem, circuit, fit
Cards or printed circuit boards that are installed in available computer slots on a computer's motherboard to, typically, add audio or video functionality.
Circuit boards that fit into expansion slots on the motherboard to link the computer to additional devices, such as modems or scanners.
Electronic circuit cards that fit into slots on the main circuit board (called the motherboard) inside the case of the computer. A computer user can add items such as modems, sound capability, and ports to a PC using an expansion card.