Ethernet cable is a type of networking cable used to connect computers, routers, switches, and other network-enabled devices. It is the most common type of network cable used in homes and offices. Ethernet cables are available in different lengths and categories, such as Cat5, Cat6, and Cat7. They are also available in shielded and unshielded varieties. Ethernet cables are used to connect devices to a local area network (LAN) or to the internet. They are also used to connect devices to a router or switch. Ethernet cables are typically more reliable and faster than wireless connections.