A cable connector includes an insulative main housing having a front mating portion defining a capsular tube, and a rear holding portion with a sleeve; an insulative contact housing with a pair of cable contacts received therein and a metallic EMI shell covering an exterior of the contact housing; a cable mechanically and electrically connected to the cable contact. The contact housing with the associated cable contacts and the EMI shell is inserted into the insulative main housing from a rear side of the insulative main housing wherein the contact housing is received within the front mating portion and the cable is received within the sleeve. The receptacle connector includes a metallic housing, an insulative housing, a pair of receptacle contacts insert-molded within the insulative housing and an insulative cover enclosing the metallic housing.