tripp Lite's 16-ft. Usb 3.0 Active Extension Cable Is A Bus Powered Extension Cable That Can Be Used To Increase The Length Of A Device Cable Without The Worry Of Signal Loss And Potential Performance Problems. Usb Limits A Cable's Length To 16ft. Any Length Above 16 Feet Requires The Use Of An Active Cable Such As This One. This Cable Has A Signal Booster Built In. The Cable Must Be Plugged Directly Into A Usb Port (either On The Pc Or A Hub). Use A Standard 6' 10' Or 15' Usb 3.0 A-b Cable To Reach The Desired Distance.