An all-USB board is often referred to as a USB hub or USB expander. They allow one USB interface to be expanded into multiple interfaces to connect multiple USB devices at the same time, such as mice, keyboards, printers, cameras, and more. USB hubs typically have multiple USB slots that can be connected to a computer or other device via a single host USB port. In this way, users can easily expand device connections and improve work efficiency.
Some USB hubs also have additional features, such as charging capabilities or faster data transfer speeds.
The kind of board that is all usb interface is called USB expander, which is to expand the USB interface on the computer that is not enough to facilitate access to the device that needs to be connected to the USB interface.