What is the function of an RJ-45 port on a network interface adapter?

The function of an RJ-45 port on a network interface adapter is to connect to a network via cable. This type of port is specifically designed for Ethernet cables, which are used to facilitate wired networking by allowing devices to communicate over a local area network (LAN). The RJ-45 connector has eight pins that correspond to different wire combinations within the Ethernet cable, enabling the transmission of data packets between devices, such as computers, routers, and switches.

This connectivity is essential for establishing reliable and high-speed network connections, whether in a home or enterprise environment. By providing a physical medium for the data to be transmitted over, the RJ-45 port plays a pivotal role in networking infrastructure. Other options presented do not align with the function of an RJ-45 port; instead, they pertain to different types of connectors used for audio and video output, or for power supply.