A card connector includes an insulative housing defining a front-and-rear direction, a number of contacts accommodated in the insulative housing, a metallic shell enclosing the insulative housing to form a receiving space and an ejector having a shaft received in the right of the receiving space and an actuator driven by the ejector. The metallic shell has a receiving slot receiving the shaft, and an upper wall and a lower wall around the receiving slot. The upper wall and the lower wall restrict the shaft in an up-and-down direction perpendicular to the front-and-rear direction.