A connector is provided which includes a housing having a plurality of pinholes which are connectable to a signal cable and through which a plurality of electrical signals are transmitted or received, and a plurality of connection pins extending from the housing where a first end of each connection pin is electrically connected to at least one of the plurality of pinholes, and a second end of each connection pin is mountable on a printed circuit board (PCB), wherein the total number of the plurality of connection pins is less than the total number of the plurality of pinholes.