This is an RJ45 (8P-8C) Female Plug. It finds its use in telecom, communications, and networking. Data connectors accept stranded cables from 26 – 24 AWG. It has an 8P8C configuration i.e. it has 8 positions and 8 conductors. This plug has gold plated phosphor bronze contacts, which provide longevity.
RJ45 is a type of communication protocol that is used for Ethernet and other long distance communications. In this type of communication, Data is transmitted between two electronics devices like Microcontrollers or Microprocessors over a very long distance without getting it lost. Normally communication protocols like SPI, USART, IIC will be used to transfer these data. These two devices are linked using a cable like CAT cables. The CAT cables are connected to the circuit through this RJ45 Connector. These connectors support any type of Ethernet cable like USP, CAT5e, CAT6 etc..
There are also many types of RJ45 connectors, but they all serve the same function other than the appearance and built quality. So if you are looking for a connector to communicate through RJ45 Protocol then this connector might be the right choice for you.