expansion card

American  

noun

Computers.

1. a card in a computer on which additional chips can be mounted to expand the computer's capabilities.

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Example Sentences

Specifically, an expansion card about the size of half of a business card simply plugs into the back of the entertainment console and expands storage up to 1 terabyte.

From Washington Times

The third update is that there’s also supposed to be a new ethernet expansion card coming as a port option, though Framework still has a “coming soon” sticker on that.

From The Verge

You can get $30 off the pricey but fast Seagate 1TB expansion card for the Xbox Series X or S console at Newegg.

From The Verge

So, if you really want more storage, the 2TB Xbox Expansion Card from Seagate, which usually runs $399.99, is currently discounted to $380.90 at Amazon.

From The Verge

Seagate Storage Expansion Card $380 $400 5% off Microsoft partnered with Seagate to make proprietary SSDs that can be inserted into the rear of either console.

From The Verge