What are the differences between USB 1.1 and USB 2.0?

USB 2.0 (Hi-speed USB) increases the data transfer rate from 12 Mbps (Megabits per second) of USB1.1 up to 480 Mbps.

USB 2.0 is both forward and backward compatible with USB 1.1.

USB specification version 2.0 is the next-generation peripheral connection for personal computers. It is intended as an upgrade for USB 1.1. Not only the new standard provides additional bandwidth for multimedia and storage applications but also offers Plug-and-Play capability and full backward compatibility for legacy USB devices.