What is a 'cascading AV switcher' used for?

A cascading AV switcher is specifically designed to expand the number of source inputs and outputs by linking multiple switchers together. This configuration allows for greater flexibility and scalability in complex audio-visual systems, catering to larger setups where multiple sources (like computers, projectors, or media players) need to be connected to various displays or audio systems.

By linking multiple switchers in a cascade fashion, users can manage a broader range of devices without being constrained to a limited number of inputs and outputs available on a single switcher. This is particularly beneficial in large venues such as auditoriums or conference rooms where multiple presentations or multimedia sources may need to be routed to different displays simultaneously.

In contrast, other options do not align with the primary function of a cascading AV switcher. Limiting the number of source inputs goes against the purpose of utilizing a cascading setup. Similarly, creating a wireless connection or managing power distribution falls outside the scope of what a cascading AV switcher is designed to accomplish.