AJ from GA writes:
If your computer’s USB ports are 2.0 and you have a multi-port external USB port that is 3.0 and you use the multi-port for transfers, will the speed be equivilent to the 3.0 ports? Thanks.
Unfortunately, there is no way to turn a USB 2.0 port into a USB 3.0 port. On the plus side, however, USB 3.0 ports are backwards compatible with USB 2.0. This means you can buy an add-in card for your desktop PC  to upgrade to USB 3.0 and still plug in all of your USB 2.0 devices to those ports – including a hub. The USB 2.0 devices will still only work as fast as they would on a 2.0 port, but you won’t need to worry about where to plug things or not having enough ports.
You can rest assured that for many devices USB 3.0 does not offer significant improvements. The devices that will see major improvements with USB 3.0 will involve transferring files. If you’ve got keyboards, mice and printers then chances are you don’t need USB 3.0 yet.