A cable connector including a connector shell including a support and an insert, wherein the insert includes a surface inclined to a cable-to-face direction of the insert so as to re-direct force applied on a face side of the insert sideways toward sides of the connector shell, and the support includes a surface inclined to the cable-to-face direction of the connector shell so as to react to the force, pushing back on the insert, thereby exerting a compression force on the insert. Related apparatus and methods are also described.