A plug connector includes a plug head, a plug terminal module, a locking member and a retaining body installed on one side of the plug connector. The plug terminal module includes a number of first plug terminals and a number of second plug terminals. The first plug terminals and the second plug terminals have a same structure and number. The first plug terminals and the second plug terminals are symmetrically arranged on opposite sides of the plug connector head.

A receptacle connector includes an insulating portion, a receptacle terminal module mounted to the insulating portion, a metal shell enclosing the insulating portion, and a receptacle circuit board. The insulating portion includes a receiving space and a mating space extending from the receiving space. The mating space extends through the insulating portion to form a mating port. The receptacle terminal module includes a first terminal module and a second terminal module. The first terminal module and the second terminal module have a same structure, and are symmetrically arranged on opposite sides of the mating space. The first terminal module and the second terminal module are electrically connected to the receptacle circuit board.

A USB Type-C male connector includes a first terminal assembly including a plurality of first pins and a second terminal assembly including a plurality of second pins. The first pins of the first terminal assembly having an SMD structure are electrically connected to a substrate in the SMT process. The second pins of the second terminal assembly having a DIP structure are electrically connected to the substrate in the SMT process. More pins of the second terminal assembly are used for transmitting data signals, control signals and power signals, thereby improving the signal quality of the USB drive.

A USB Type-C male connector includes a first terminal assembly including a plurality of first pins and a second terminal assembly including a plurality of second pins. The first pins of the first terminal assembly having an SMD structure are electrically connected to a substrate in the SMT process. The second pins of the second terminal assembly having a DIP structure are electrically connected to the substrate in the SMT process. More pins of the second terminal assembly are used for transmitting data signals, control signals and power signals, thereby improving the signal quality of the USB drive.

A connector assembly for connecting a first electrical component to a second electrical component includes a circuit board which is electrically conductively connectable to the first electrical component. A plug unit is electrically conductively couplable, at a plug end, to a mating plug unit and is disposed on a first side of the circuit board. A light source is disposed on a second side of the circuit board opposite the first side. A light guide has an in-coupling region and an out-coupling region, and a through-hole in which the plug end of the plug unit is at least partially disposed. The light guide also has a light injection opening in which the light source is at least partially disposed. The in-coupling region is disposed on a side wall of the light injection opening, and the out-coupling region surrounds the through-hole.

An electric connector includes an insulative body, multiple conductive terminals, a shielding sheet, and a shielding shell. The insulative body includes a base and a tongue. The conductive terminals include an upper row of terminals and a lower row of terminals, which are disposed on an upper side and a lower side of the tongue, respectively. The shielding sheet is embedded in the insulative body and located between the upper row of terminals and the lower row of terminals. Two sides of the shielding sheet are extended with an extending section respectively. A distal end of each extending section is folded back to form an engaging portion. The shielding shell is adapted to sheathes the insulative body. Two sides of the shielding shell are respectively provided with an engaging trough engaged with one of the engaging portions to make the shielding shell contact with the shielding sheet.

An electric connector includes an insulative body, multiple conductive terminals, a shielding sheet, and a shielding shell. The insulative body includes a base and a tongue. The conductive terminals include an upper row of terminals and a lower row of terminals, which are disposed on an upper side and a lower side of the tongue, respectively. The shielding sheet is embedded in the insulative body and located between the upper row of terminals and the lower row of terminals. Two sides of the shielding sheet are extended with an extending section respectively. A distal end of each extending section is folded back to form an engaging portion. The shielding shell is adapted to sheathes the insulative body. Two sides of the shielding shell are respectively provided with an engaging trough engaged with one of the engaging portions to make the shielding shell contact with the shielding sheet.

An electrical receptacle connector includes a metallic shell, an insulated housing in the metallic shell, a plurality of terminals at the insulated housing, and a metallic plate. The terminals are arranged in two rows, and the metallic plate is at the insulated housing and between the terminals in the two rows. The metallic plate includes a through hole at a front portion of the tongue portion. The through hole has several through portions and a communication portion between the through portions. By allowing that the communication portion to be in communication with the through portions to form a through hole in an elongated shape, the molding efficiency for forming the tongue portion with the filling of the plastic materials can be increased.

An electrical receptacle connector includes a metallic shell, an insulated housing in the metallic shell, a plurality of terminals at the insulated housing, and a metallic plate. The terminals are arranged in two rows, and the metallic plate is at the insulated housing and between the terminals in the two rows. The metallic plate includes a through hole at a front portion of the tongue portion. The through hole has several through portions and a communication portion between the through portions. By allowing that the communication portion to be in communication with the through portions to form a through hole in an elongated shape, the molding efficiency for forming the tongue portion with the filling of the plastic materials can be increased.

An electrical receptacle connector includes a metallic shell, an insulated housing in the metallic shell, a plurality of terminals at the insulated housing, and a metallic plate. The terminals are arranged in two rows, and the metallic plate is at the insulated housing and between the terminals in the two rows. The metallic plate includes a first through hole, several second through holes, and several communication holes. By allowing that the communication holes to be in communication with the first through hole and the second through holes in the metallic plate, the molding efficiency for forming the tongue portion with the filling of the plastic materials can be increased.