A card coupling system includes a card having an electrical coupler and defining a plurality of extension member coupling holes. An extension member is operable to couple to the card and includes a base. A plurality of card engagement members extend from a first edge of the base, each card engagement member operable to be located in a respective extension member coupling hole in order to couple the extension member to the card. A mounting plate extends from a second edge of the base and defines at least one mounting hole. The card may be a half size form factor card and may be coupled to a full size form factor card connector by engaging the card connector with the electrical coupler, coupling the card engagement members to respective extension member coupling holes, and securing the mounting plate to the card connector through the at least one mounting hole.