A connector assembly for electrically contacting a blade connector to a second connector The connector assembly includes a blade connector which has a contact surface plane that is electrically connected to the second connector in the mated state. In order to improve mechanical and electrical properties of the overall connector assembly and, in particular, of the blade connector, the assembly further includes a mounting cage in which the blade connector is captively held and which has at least one clamping device that presses the second connector onto the contact surface plane of the blade connector in the mated state.