I am not sure after I tried it on both computer's usb both win7, one intel i7 and the other amd64
on the amd64 doesn't work after the usb installation, looking on the usb viewer, it is in there. but only say com1 in the ide which would be the motherboard of amd64.
2nd part, after a few minutes the pro stopped blinking which arduino uno, mega and micro would carry on, is that normal?
on the intel, usb not recognized any on usb2 till I went on usb3, it didn't show "digitspark" but couple of weird symbols.