A card connector for connecting different types of IC cards includes a housing for receiving an IC card for movement between a preload position and a latched position. A slider is movably mounted on the housing and engageable with the IC card for movement therewith between the preload and latched positions. A latch mechanism is operatively associated between the slider and the housing for latching slider in the latch position. A lock member on the slider is engageable in a locking position with a lock portion of one type of IC card for locking the IC card to the slider, the lock member being movable to an inoperative position to allow an IC card of a second type which does not have a lock portion to be inserted into the connector.