Nowadays terms such as network switch, Ethernet switch, network hub and router are often used interchangeably.In the home or office, the Ethernet switch functions as a central station connect computers, printers and every other wired device to each other. The switch is also wired to the router and modem to access the Internet. 
  An Ethernet switch is one of the three major functions in a wireless router, and although stand-alone Ethernet switches have up to 48 ports, the Ethernet switch in the wireless router typically has only 4 ports.For these 48 ports, we need to use RJ45 Connector with Integrated Magnetic（ICMS）as the Ethernet downlink connection.The RJ45 connector/plug/interface, or whatever you wish to call it, is essentially a piece of plastic with eight golden contacts inside.
  The most common twisted-pair connector is an 8-position, 8-contact (8P8C)(8P10C) and single port 1x1, 1x2, 2x4, 2x6, and 2x8 port assemblies modular plug and jack commonly referred to as an RJ45 connector. Thus, RJ45 jacks carry integrated magnetic along with speeds of 10/100 or 10/100/1000 Base-T even to 10G Base-T. This device in order to ensure the gigabit switches support 10, 100 and 1,000Mb(1Gb). The Gigabit standard added full-duplex transmission, which provides simultaneous send and receive in each line. All Ethernet below 10,000Mb(10Gb) is backward compatible and detects the highest common speed between both ends of the connection. According to category, RJ45 connector can divide into cat6 cable plug and also Cat 5, 5e, and 6A. 
  Last but not least, if you run out of ports on your router, or if you have an entertainment center requiring multiple wired connections but running yards of Ethernet cables isn’t a sensible option, then you need a network switch. YYITEX can provide RJ45 connectors to support for your Ethernet switch needs.