A system includes a minicard socket, a controller, a south bridge, and a differential multiplexer. The minicard socket is configured to receive a plurality of types of minicards. The controller is in communication with the minicard socket, and is configured to determine which one of the plurality of types of minicards is received within the minicard socket. The south bridge is configured to communicate with the minicard received within the minicard socket. The differential multiplexer is in communication with the controller and with the minicard socket. The differential multiplexer configured to switch the south bridge and the minicard socket between communicating over a plurality of buses based on the type of minicard received within the minicard socket.