A plug connector assembly includes: a mating member including an insulative housing and a pair of latching members spacedly retained in the insulative housing; a cable electrically connected to the mating member; and an outer case enclosing the mating member and the cable and having an operating portion to operate the latching member; wherein each of the latching member includes a forwardly extending mounting portion, a connecting portion upwardly extending from a rear end of the mounting portion, an elastic portion upwardly extending form a top end of the connecting portion, and a locking portion disposed on an extremity end, the elastic portion defining an upwardly extending pressing portion, the operating portion when pressed further pressing the pressing portion to move the locking portion towards an inside of the insulative housing for disengaging the latching member from a mating connector.