A card connector to be used for memory cards having a connector body and a plate-like frame attached to a frame member having a card insertion and removal opening(s), and a slider(s) operable in association with the card insertion/removal operation attached to the frame in an overlapping manner. The card connector is made thin with high mechanical strength assured. In particular, a plurality of cards may be overlappingly mounted on the card connector. Both release of the cards, held at setting positions and card unloading, are carried out by a single operation of actuators.