Do USB 1.x devices work on USB 2.0?
Yes, USB 1.0 or 1.1 devices and hubs are compatible with USB 2.0. However, a USB 1.0 or 1.1 devices will not have all of the capabilities and features found USB 2.0. If you are having trouble getting a USB 1.x device working with USB 2.0, it is likely an issue with USB and not a compatibility issue.
A USB 2.0 device work on a USB 1.1 or 1.0 port unless otherwise stated by the manufacturer. It is important to realize that some USB devices do not operate as well in USB 1.x because of the 12 Mbps bandwidth limitation.