Terminals are accessory products used to achieve electrical connections. They are industrially classified as connectors and consist of contact interfaces, contact coatings, and contact elastic elements. The main function of terminals is to connect the circuit of the connector to the main circuit board, providing both electrical and mechanical connections. They not only transmit electronic signals but may also carry electrical power in some cases. Additionally, connector terminals enable the networking of connectors by transmitting data, such as Ethernet and other high-speed data transmission protocols.