What device would you use to connect multiple USB devices to a single USB port?

To connect multiple USB devices to a single USB port, a USB hub is the appropriate choice. A USB hub functions by providing additional USB ports that can accommodate multiple devices, allowing for easy connections without needing to frequently unplug and replug devices. When you connect a USB hub to a single USB port on a computer, it effectively increases the number of available ports, enabling multiple devices to communicate simultaneously with the host system.

The other options do not fulfill this need in the same way. A USB extender is designed to increase the distance between a USB device and the host computer, rather than to add extra ports. A USB splitter may imply dividing a single connection but typically does not provide the data transfer capability needed for multiple devices to operate independently. A USB switch, on the other hand, allows the user to share a single USB device between multiple computers, but it does not allow for multiple devices to be simultaneously connected to one port. Thus, a USB hub is the clear and effective solution for connecting multiple USB devices to a single USB port.