USB 2.0 is a high speed connection method transferring data at 480Mbps! A to B cables are usually used for connecting a printer or scanner, utilising Plug and Play technology. No need for drivers to be installed, simply plug the cable into your spare USB port - and connect your device!
Connector 1: USB Type A Male
Connector 2: USB B Male
USB 2.0 Type A Male - Type B Male