Definition of expansion card in English:

expansion card

Line breaks: ex¦pan|sion card
(also expansion board)

noun

Computing
  • A circuit board that can be inserted in a computer to give extra facilities or memory.
    More example sentences
    • With almost everything I need integrated on the motherboard, the only expansion card I have in my PC is the graphics card.
    • The terminals are used for electrically connecting the elongated expansion card with a printed circuit board on which the card connector is mounted.
    • If you have ever added an expansion card to your computer, you are almost half-way to building your own system.

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