What is the primary function of an Ethernet cable?

The primary function of an Ethernet cable is to serve as a network cable that enables information to travel between wired devices. Ethernet cables are specifically designed for wired networking, allowing devices such as computers, routers, and switches to communicate with each other through a local area network (LAN). They achieve this by transmitting data in the form of electrical signals over twisted pairs of copper wires or fiber optic strands, depending on the type of Ethernet cable being utilized.

This capability is fundamental to establishing reliable connections for internet access and data sharing, making Ethernet cables essential components in both home and office networking environments. The design and standards associated with Ethernet cables, such as those governed by IEEE 802.3, ensure they can support varying speeds and bandwidth requirements, essential for efficient data communication.

The other options do not accurately describe the primary function of an Ethernet cable. While a connector for wireless devices relates to networking, it does not pertain to the wired aspect of Ethernet. A power cable is used for providing electricity to devices, and an audio cable focuses on sound transmission, which are outside the scope of what Ethernet cables do.