Facts: USB 3.0 is 10 times faster than USB 2.0, because it uses a technology called SuperSpeed.
Because of this USB 2 is called High Speed adn USB 3 is called SuperSpeed. This is also evident in the symbol used for USB 3 which has SS as part of the Symbol.
Below are the symbols for USB 2.0 and USB 3.0. You can check for these symbols near your laptop USB ports. You make out USB 2.0 and USB 3.0 by:
1) USB 2.0 port symbol is different from USB 3.0 symbol.
2) USB 3.0 port might have a blue tab in the ports
Either one of the above conventions would be used on your device.
|USB 2.0 Symbol|
|USB 3.0 Symbol|