a first subassembly comprising

a mounting frame being an insulator and having

a front end;

a rear end;

an inner surface;

an outer surface;

a front recess being formed on the inner surface near the front end;

a rear recess being formed on the inner surface near the rear end;

a central transverse recess being formed on the inner surface between the front recess and the rear recess;

at least one second contact pin support being formed on the central transverse recess near the rear recess;

multiple anchor protrusions being formed on the rear recess near the at least one second contact pin support; and

multiple recessed slots being formed on the outer surface near the rear end;

four first contact pins complying with a USB 2.0 specification, being insert-molded in the mounting frame and comprising

two central first contact pins being U-shaped, and each first contact pin having

an upper surface;

a lower surface;

a longitudinal shaft having a front end and a rear end;

an offset socket contact being formed on the front end of the longitudinal shaft, protruding transversely from the upper surface, bending, protruding longitudinally from the longitudinal shaft, being mounted on the front recess to connect to a video port connector; and

an offset wire contact being formed on the rear end of the longitudinal shaft, protruding transversely from the upper surface, bending, protruding longitudinally from the longitudinal shaft, being mounted on a corresponding recessed slot on the outer surface, having nonskid on the upper and lower surfaces and connecting to corresponding wires from a device to which the plug connector is connected;

two outer first contact pins being U-shaped and being slightly longer than the central first contact pins, and each outer first contact pin (12B) having

an upper surface;

a lower surface;

a longitudinal shaft having a front end and a rear end;

an offset socket contact being formed on the front end of the longitudinal shaft, protruding transversely from the upper surface, bending, protruding longitudinally from the longitudinal shaft, being mounted on the front recess to connect to a video port connector; and

an offset wire contact being formed on the rear end of the longitudinal shaft, protruding transversely from the upper surface, bends, protruding longitudinally from the longitudinal shaft, being mounted on a corresponding recessed slot on the outer surface, having nonskid on the upper and lower surfaces, connecting to corresponding wires from a device to which the plug connector is connected and expanding toward the central first contact pins to decrease distances between the nonskid of the four first contact pins to keep the wires connecting respectively to the first contact pins from separating to maintain efficiency of high frequency transmission;

a second subassembly being connected to the first subassembly and comprising

a mounting frame being an insulator and having

a front end;

a rear end;

an outer surface;

an inner surface;

five contact pin seats being formed on the inner surface; and

multiple anchor holes being formed on the inner surface near the rear end and holding the anchor protrusions to connect the first subassembly and the second subassembly;

five second contact pins complying with a USB 3.0 specification, being mounted respectively in the contact pin seats of the mounting frame to form the second subassembly, being staggered with the first contact pins, and comprising

one central second contact pin and four outer second contact pins, and each second contact pin having

a front end being a hook and including an upper surface and a lower surface;

a resilient contact being formed on the upper surface of the front end to connect to a video port connector;

a rear end including an upper surface and a lower surface and being on the rear recess by the lower surface after the first subassembly and the second subassembly are combined;

a protrusion extends upward between the front and rear ends and is held in place by a corresponding second contact pin support to prevent the second contact pin from moving; and

an upper nonskid surface being formed adjacent to the rear end, and the upper nonskid surface on the central second contact pin is linear, and the upper nonskid surfaces of the four outer second contact pins bend toward the central second contact pin to decrease distances between the upper nonskid surfaces of the five second contact pins to keep cables from separating and to maintain efficiency of high frequency transmission;

a casing covering the first subassembly and the second subassembly and comprising an inner surface and an outer surface.