What Are Expansion Slots?

Computers often outlast the usefulness of their original video card, and upgrading this one component through an expansion slot can revitalize the computer

An expansion card is a printed circuit board that can be inserted into an expansion slot on a computer's motherboard to add new functionality

expansion slot A receptacle inside a computer or other electronic system that accepts a printed circuit board The number of slots determines future expansion See PC data

expansion slot types The definition of expansion slot in the dictionary is a physical electronic interface provided in a computer system to enable extra facilities to be added