What is a Modular Plug ? A modular plug, often referred to simply as an RJ-45 plug, is a type of connector commonly used for Ethernet cables.
It's designed to terminate twisted pair cables, usually Cat5e, Cat6, or Cat6a cables, which are widely used for networking purposes.
The modular plug has eight positions, with eight conductors (wires), and it's typically used in conjunction with an RJ-45 jack to create a connection between network devices like computers, routers, switches, and other networking hardware.
The plug is modular in nature, meaning it can be easily inserted and removed from compatible jacks without the need for soldering or Complicated tools. A tool commonly used for terminating modular plugs, is called a "crimping tool."