Panda II USB Host

Is that safe to leave USB Vbus wire uncut, so when I put 5V, powers goes both to Panda II and to USB device? :-[

It is a risk that you should take if you really know what you are doing

I’m just trying to make USB Host cable for Panda II.
Didn’t get should I cut Vbus or not?

Maybe I am not understanding what you mean. Please see

Yes, the question is about this:

If I connect 5V from Panda II output right to VBus line, should I cut VBus line to Panda II?

No you do not need to cut it