USB 2.0 vs. USB 3.0: Should You Upgrade Your Flash Drives?
 

New computers have now been coming with USB 3.0 ports for years. But just how much faster is USB 3.0? Will you see a big speed improvement if you upgrade your old USB 2.0 flash drives?

USB 3.0 devices are backwards compatible with USB 2.0 ports. They’ll function normally, but only at USB 2.0 speeds. The only downside is that USB 3.0 devices are still a bit more expensive.

http://www.howtogeek.com/179803/usb-...-flash-drives/