# Modular connector |  | A modular connector is a type of electrical connector for cords and cables of electronic devices and appliances, such as in computer networking, telecommunication equipment, and audio headsets. | |-|-| | | wikipedia:: [Modular connector](https://en.wikipedia.org/wiki/Modular_connector) | > It is common to use a registered jack number to refer to the physical connector itself; for instance, the 8P8C modular connector type is often labeled RJ45 because the registered jack standard of that name specified 8P8C modular connectors. Similarly, various six-position modular connectors may be called RJ11. Likewise, the 4P4C connector is sometimes called RJ9 or RJ22 though no such official designations exist. 6P2C used for telephone line connections ## RJ45 ## RJ11