Electrical connector assembly

Abstract

An electrical connector assembly includes: an insulative housing forming a front mating slot and a rear receiving space; a terminal module assembly received in the insulative housing and including an upper part and a lower part stacked with each other in a vertical direction, each of the upper part and the lower part comprising a high-speed terminal module and a sideband terminal module, the high-speed terminal module having an insulator and plural high-speed terminals fixed in the insulator, the high-speed terminals comprising plural ground terminals and differential pair terminals arranged alternately with the ground terminals in a transverse direction, each of the differential pair terminals and the ground terminals defining a mating portion, a tail opposite to the mating portion, and a transition portion therebetween; and a ground member mechanically and electrically connected to the transition portions of the ground terminals to form a common ground.