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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Meanwhile, the rear panel features a 120mm fan on a dual-format 140mm/120mm mount, and a removable seven-slot expansion card bracket that can be rotated counter-clockwise to support vertical graphics-card mounting via a riser cable (not included). — Thomas Soderstrom, PC Magazine, 10 Oct. 2026 But motherboards, displays, and USB-C expansion cards are all interchangeable between the Laptop 13 and the Laptop 13 Pro. — ArsTechnica, 27 July 2026 Third, anyone can place hundreds of calls per minute with the small investment of an inexpensive PC, a hundred-dollar Voice over Internet Protocol (VoIP) expansion card, free open-source software, and a few days of assembly. — Jim McEachern, IEEE Spectrum, 26 Nov. 2019 See All Example Sentences for expansion card

Word History

First Known Use

1982, in the meaning defined above

Time Traveler
The first known use of expansion card was in 1982

Rhymes for expansion card

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Browse Nearby Words

expansion bolt
expansion card
expansion chamber
See all Nearby Words

Cite this Entry

“Expansion card.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expansion%20card. Accessed 14 Oct. 2026.

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