Patent ID: 8353707

Claim:
An electrical connector assembly comprising: an electrical receptacle defining a bottom face to be mounted onto a horizontal host board and a horizontal slot opening forwardly to define a front-to-rear direction, a vertical direction, and a transverse direction, the electrical receptacle comprising: a transverse row of first mating contacts having contacting portions forwardly and downwardly protruding into said horizontal slot and soldering portions downwardly extending to be mounted to the host board; a transverse row of second mating contacts disposed below the horizontal slot and having contacting portions upwardly protruding into said horizontal slot and soldering portions downwardly extending to be mounted to the host board; and a transverse row of third mating contacts disposed below the horizontal slot and having contacting portions upwardly protruding into said horizontal slot and soldering portions downwardly extending to be mounted to the host board; and an electrical plug having a printed circuit board (PCB) defining a top face and an opposite bottom face, the PCB having a front mating edge to be inserted into the horizontal slot of the receptacle and comprising: a transverse row of first mating pads on the top face for respectively mating with the contacting portions of the first mating contacts; and a transverse row of second mating pads on the bottom face for respectively mating with the contacting portions of the second mating contacts; and a transverse row of third mating pads on the bottom face for mating with the contacting portions of the third mating contacts, the transverse row of third mating pads being disposed behind the transverse row of second mating pads; and wherein each of the first mating contacts and a corresponding second mating contact are insert-molded with insulative material to form a contact wafer.