ALL meanings of expansion card
- noun Technical meaning of expansion card (hardware) A circuit board which can be plugged into one of a computer's expansion slots to provide some optional extra facility such as additional RAM, disk controller, coprocessor, graphics accelerator, communication device or some special-purpose interface. Different computers have different standards for the cards they accept, e.g. PCI. 1
- noun expansion card a circuit board that can be connected to a computer's motherboard in order to increase memory or add extra facilities 0