I have a usb 2.0 Audio driver for my headphone and a usb 2.0 mouse, and i have 2 usb 2.0 ports and 2 usb 3.0 ports., I wanted to buy a usb extension for both of them because i need the extra length, I was going to buy a standard usb 2.0 extension, but then i was wondering if i buy a new mouse with usb 3.0 i will need to change the extension, and same for the headphone, So my question is If i buy a usb 3.0 extension, will it work between a usb 2.0 port and usb 2.0 device, or should i just buy the 2.0 extension ?

up vote 0 down vote accepted

Mice don't use USB3, and are unlikely to require it in the near future.

That said, all that will happen with a USB 3.0 extension cable is that the additional connectors won't be connected to anything, and things should just work.

  • Thank you, i will buy the usb 3.0 extension then, since i might use it with my usb 3.0 external hard drives xD – hany Apr 13 '15 at 3:01

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