A connector has a mounting portion of a plate-like shape and a cable fitting portion protruding from the mounting portion in a first direction. The mounting portion has a fixing portion disposed on a first flat surface faced to the first direction and adapted to be fixed to a board, and a flat portion disposed on a second flat surface faced to a second direction opposite to the first direction. The cable fitting portion has a receiving portion adapted to receive a cable, an opening portion formed at one end of the receiving portion and allowing the cable to be inserted therethrough, and a cable contact portion to be electrically connected to the cable.