LAN cable, commonly known as an Ethernet cable, is a type of network cable used to connect devices within a local area network (LAN). It facilitates high-speed data transmission between computers, routers, switches, and other networked devices. These cables typically consist of twisted pairs of copper wires and are terminated with RJ45 connectors. Ethernet cables come in various categories, such as Cat5e, Cat6, and Cat6a, each offering different performance levels in terms of speed and bandwidth. They are essential for establishing stable and reliable wired network connections.