A card guide apparatus for retaining a PCI or ISA computer add-on card within a computer chassis frame. The card guide includes a bracket fixed to the computer chassis frame and a shuttle that is moveable between a first position disengaged with edges of the card to a second position engaged with the edges of the card for support during transport. The shuttle is slidably retained along at least one track defined within the bracket and includes an upper and lower panel defining a channel therebetween in which the card edge is received.