An electronic device includes a housing, a system connector accessible at an external surface of the housing, and a hinged door to selectively expose or cover the system connector. The electronic device may also include a mechanism coupled to the hinged door that pivotally biases the door from an open position, in which the system connector can receive an external connector, to a partially closed position in which the hinged door at least partially covers said system connector. The hinged door is to slide along the housing if the hinged door is moved from the partially closed position to a fully closed position.