expansion card
noun
: a circuit board connecting to a motherboard which expands the capabilities of a computer
Examples of expansion card in a Sentence
Recent Examples on the Web
The expansion cards snap into the system’s empty bays with USB Type-C connections (with different ports on the other end facing the user), and tiles pop in and out of the front panel’s grid.
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PC Magazine, 7 Aug. 2025
These include high-capacity input hubs, as well as external boxes that can host PCIe expansion cards with I/O for specialized video workflows, or for attaching extra-high-speed portable storage.
—Joe Osborne, PCMAG, 5 Mar. 2025
These will join the non-translucent orange, green, purple, and red USB-C expansion cards in Framework's online store.
—Ars Technica, 25 Feb. 2025
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PC Magazine, 7 Aug. 2025
These include high-capacity input hubs, as well as external boxes that can host PCIe expansion cards with I/O for specialized video workflows, or for attaching extra-high-speed portable storage.
—Joe Osborne, PCMAG, 5 Mar. 2025
These will join the non-translucent orange, green, purple, and red USB-C expansion cards in Framework's online store.
—Ars Technica, 25 Feb. 2025
Cite this Entry
“Expansion card.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expansion%20card. Accessed 9 Sep. 2025.
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