Electronic connector (also often called circuit connector, electrical connector) is a kind of conductor device that connects electrical circuits. It is used to complete the electrical connection between circuits or electronic equipment and other components to become connectors, that is, the two Bridge between. It is widely used in various electrical circuits and plays a role in connecting or disconnecting circuits. XKB connectors are divided into: FPC connectors, input and output connectors, board-to-board connectors, wire-to-board connectors, and SD/SIM card connectors.

A switch refers to an electronic component that can open a circuit, interrupt current, or make it flow to other circuits. The most common switch is an operating switch that allows people to operate machinery or give orders, and they have one or several electronic contacts. The "closed" of the contact means that the electronic contact is conducting and current is allowed to flow; the "open" of the switch means that the electronic contact is not conducting and forming an open circuit, and current is not allowed to flow. XKB switch series are: touch switch, toggle switch, key switch, micro switch, detection switch, multi-function switch, switch with light.

Sockets are also often called power sockets, audio and video sockets. A socket is a socket into which one or more circuit wiring can be inserted, through which various wiring can be inserted. This facilitates connection with other circuits. Through the connection and disconnection between the circuit and the copper piece, the final connection and disconnection of this part of the circuit is achieved. The socket series are divided into: audio earphone socket and DC power socket.