Type A, B or C usually refers to the physical design of the plugs and the ports, while the versions determine the functionality and the speed of the USB cable.

USB 2.0 is much faster than USB 3.0. USB offers a top speed of 480 Mbps, while USB 3.0 offers transfer rates of 4.8 Gbps. Also, USB 2.0 is usually grey or black, while USB 3.0 is usually blue to differentiate...

Mini USB predates the micro USB and both have five pins. However, mini USB has a life cycle of 5,000 connects and disconnects, while, micro USB has a life cycle of at least 10,000 connects and disconnects....