Reply to Audio Interface + Speakers Power Up/Power Down

Hey guys,

So I recently saw a video about the basics of ableton live and when they started talking about audio interfaces and speakers they had a specific set of instructions of turning on turning on the speakers and then the interface and then the computer. My question is...

Will my Audio 4 DJ get damaged in anyway if I have my computer on already and I just plug/unplug it from the USB port when I want to use/not use it? I usually turn my speakers off before unplugging the A4DJ but I was wondering if the A4DJ itself would get damaged. What are your thoughts?

Thanks.