The invention concerns a chip card (1) reading device (5) equipped with a communication interface (3). The device (5) comprises a body (6) provided with at least a planar surface (9) delimited on two perpendicular sides by two ribs (14, 15) projecting from the planar surface (9), the other sides not having any ribs, and a communication interface (3) arranged in the body (19) and projecting from the planar surface (9) for providing an electrical connection with the chip card communication interface (3). The device (5) comprises means for blocking a movement of the card parallel to the planar surface (9) along a direction parallel to one of the ribs, while allowing such a movement along a direction parallel to the other rib.