Ethernet cables (or networking cables) are a type of cable most commonly used for network connectivity in order to connect computers, routers, and other network devices together. They are the physical cables used to create a network. Ethernet cables are typically made from copper wire and are categorized by speed, length, and connector type. Ethernet cables have become the industry standard for networking due to their reliability and ease of installation. Ethernet cables come in a variety of types, including Cat 5 and Cat 6, depending on their speed and connectivity needs. Ethernet cables are also used for other purposes such as carrying audio/video signals and digital data.