USB on/off

Hello,
I’m new here.
My question is:
Is there any possible way to script on/off USB port at specific time ?
I found command to reset for some time but i didn’t found way to off/on port.

Thanks for help

There is no off command available directly. But you can set reset to longer duration (for example 30 minutes),
http://wiki.mikrotik.com/wiki/Manual:USB_Features

add command line to /system script or /system scheduler to work.