Abstract: The connector includes a support plate for the major face of the card opposite the face which carries contact zones. It defines a path for the insertion of the card in a given direction and includes an end-of-travel microswitch which is actuated by the front edge of the card when the latter reaches and exceeds a given position. A rocker is rotatable on the microswitch housing about an axis which is orthogonal to the direction of insertion of the card, parallel to the support plane on the plate and distant from the support plane. The rocker has, opposite the rotation axis, a finger for the front edge of the card and it has a projection for controlling the microswitch.