A connector comprising a contact carrier and a plurality of contact elements mounted in the contact carrier which extend along a center axis, the contact carrier having a front wall and a rear wall which are connected to one another via side walls, wherein the front wall, rear wall and side walls define a receiving space, wherein at least one mounting rib extends through the receiving space from the front wall to the rear wall, said at least one mounting rib having a front fastening section and a rear fastening section and a clamping section arranged between the fastening sections (9, 10), wherein the at least one mounting rib in the clamping section has at least one clamping structure, each of which holds a contact element in an intermediate space between two neighboring mounting ribs and/or in an intermediate space between the at least one mounting rib and one of the side walls, wherein at least one of the fastening sections (9, 10) has the structure of a flexure bearing, such that the mounting rib can be moved from a clamping position into a release position by a deformation, in particular an elastic deformation, of the flexure bearing during insertion and/or removal of the contact element, characterized in that, the clamping structure has at least one hook, the hook having a concave rounding for receiving the contact element, the concave rounding, as seen in cross-section transversely to the center axis, having substantially the shape of a segment of a circle, in particular substantially the shape of a quarter of a circle, and that two hooks are arranged opposite each other on two neighboring mounting ribs with respect to the intermediate space or the side wall, forming a hook pair, wherein one of the hooks engages around the contact element from below relative to the center axis, and the other hook engages around the contact element from above relative to the center axis. the contact carrier having a front wall and a rear wall which are connected to one another via side walls, wherein the front wall, rear wall and side walls define a receiving space, wherein at least one mounting rib extends through the receiving space from the front wall to the rear wall, said at least one mounting rib having a front fastening section and a rear fastening section and a clamping section arranged between the fastening sections (9, 10), wherein the at least one mounting rib in the clamping section has at least one clamping structure, each of which holds a contact element in an intermediate space between two neighboring mounting ribs and/or in an intermediate space between the at least one mounting rib and one of the side walls, wherein at least one of the fastening sections (9, 10) has the structure of a flexure bearing, such that the mounting rib can be moved from a clamping position into a release position by a deformation, in particular an elastic deformation, of the flexure bearing during insertion and/or removal of the contact element, characterized in that, the clamping structure has at least one hook, the hook having a concave rounding for receiving the contact element, the concave rounding, as seen in cross-section transversely to the center axis, having substantially the shape of a segment of a circle, in particular substantially the shape of a quarter of a circle, and that two hooks are arranged opposite each other on two neighboring mounting ribs with respect to the intermediate space or the side wall, forming a hook pair, wherein one of the hooks engages around the contact element from below relative to the center axis, and the other hook engages around the contact element from above relative to the center axis.