Confused about USB 3.0 and 2.0

[rageshragz]

Guys tell about this !
Does usb 3.0 Version Works on Usb 2.0 Version?


And Also

Does usb 2.0 Version Works on Usb 3.0 Version

This 3.0 and 2.0 are just version
But Can we use any kind of usb accessories ?

 

[AdmiralDonut]

All USB 2 accessories will work in a USB 3 port because USB is always backwards compatible. For a detailed and decent explanation of the differences between USB 2 and 3, go here:

http://www.everythingusb.com/superspeed-usb.html

 

[ShadyHamster]

The only only time you will run into problems is if/when you have a micro usb 3.0 cable and a micro usb 2.0 device.

http://www.buildcomputers.net/images/micro-usb-cables.jpg
The usb 3.0 cable has the extra part with the extra pins.

Other then that you wont have any compatibility issues.

 

[unplanned bacon]

If it's a USB device it will connect to a USB port. Only thing that will vary is speed