A cable assembly comprises: an insulative housing; a plurality of contacts received into the insulative housing; a spacer assembled to a rear end of the insulative housing; a wire management assembled to a rear end of the spacer, and a cable electrically connected to the rear ends of the plurality of contacts. The wire management defines a plurality of first and second channels formed on top surfaces. Each of second channel defines a rear inlet and two front outlets. The cable comprises several pairs of signal wires received into the corresponding second channels. Each differential pair of signal wires comprises two signal conductors, a grounding conductor and a shielding layer surrounding the two signal conductors and a grounding conductors. Two front ends of the two signal conductors are exposed out of the shielding layer and extending out of the wire management through two outlets.