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
This laptop also uses Framework’s signature expansion cards, removable and swappable USB-C header modules containing ports such as USB-C, HDMI, and Ethernet connections, among others.
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PC Magazine, 12 Nov. 2025
This concept eventually turned into an expansion card for the Apple IIe.
—Cameron Kaiser, ArsTechnica, 12 Sep. 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
The system also retains some modularity, with swappable black or translucent side panels, an optional carrying handle, 21 customizable tiles on the front (which can be either bought or 3D-printed), and two slots on the front for the same expansion cards used for Framework Laptops.
—Ars Technica, 25 Feb. 2025
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PC Magazine, 12 Nov. 2025
This concept eventually turned into an expansion card for the Apple IIe.
—Cameron Kaiser, ArsTechnica, 12 Sep. 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
The system also retains some modularity, with swappable black or translucent side panels, an optional carrying handle, 21 customizable tiles on the front (which can be either bought or 3D-printed), and two slots on the front for the same expansion cards used for Framework Laptops.
—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 30 Nov. 2025.
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