The present disclosure discloses a plug connector including an insulating housing, a number of plug terminals and a cable. The insulating housing includes a width direction extending along a left-and-right direction. The plug terminals are retained by the insulating housing and arranged in two rows in the width direction of the insulative housing. The plug terminals of each row are arranged in an upper-and-lower direction and spaced away from each other in the upper-and-lower direction. Each plug terminal extends along a front-and-back direction. The cable includes a number of core wires correspondingly and electrically connected with the plug terminals. A connector assembly including the plug connector and the mated socket connector is also disclosed in the present disclosure.