There are differences between USB 3.0 and USB 2.0. Some of these differences may be considered minor but it’s wise to have this information as it might get handy in any walk of life. There are six differences between USB 3.0 and USB 2.0 :
BasisUSB 2.0USB 3.0 SpeedUSB 2.0 provides a data transfer speed of 480 megabits per second(Mbps) and is referred to as High-Speed.USB 3.0 has a data transfer speed of 4800 Mbps which is nearly 10 times the speed of USB 2.0, and USB 3.0 is referred to as SuperSpeed. Visual DifferenceUSB 2.0 has a 'black' box inside its USB port.USB 3.0 has a 'blue' box inside its USB port. Backward CompatibilityUSB 2.0 or earlier version drives can be connected to a USB 3.0 port.USB 3.0 ports also offer complete backward compatibility. But, USB 3.0 will give the same data transfer rate as USB 2.0 when it is connected to a USB 2.0 port. So, USB 3.0 must be connected to a USB 3.0 port to achieve the speed USB 3.0 Power UsageUSB 2.0 tends to provide 500 mA current.USB 3.0 is capable of providing 900 mA current. Larger BandwidthUSB 2.0 provides one-way communication. This means the data is sent and received over the same path. However, USB 2.0 can not send or receive data, simultaneously.USB 3.0 uses two unparalleled pathways to send and receive data. Each path is dedicated to a single function, one is for sending and one is for receiving data. This means USB 3.0 can send and receive data, simultaneously. Number of WiresUSB 2.0 has a total number of 4 connector wires.USB 3.0 has a total number of 9 connector wires.
So, these are some of the notable differences between USB 2.0 and USB 3.0. The comparison between version 2.0 vs 3.0 has increased the popularity and demand of USB 3.0 drives.