Just as the jump from USB 1.1 to 2.0 was significant, so is the change from 2.0 to 3.0. This comparison showcases the benefits of USB 3.0 versus USB 2.0.  USB 3.0 is about ten times faster than USB 2.0; 4.8Gbit/s and 480Mbit/s respectively.  USB 3.0 offers a different style of data transfers by using full-duplex transfers instead of USB 2.0’s half-duplex data transfers.  The following slides will explain both full and half duplex.  USB 3.0 offers new power management features to increase the power available to external devices and decrease the power levels of devices during idle periods.  One of the greatest features of USB 3.0 is that it is 100% backwards compatible with USB 2.0.