as for physically fitting the card to the board... pci express card slots are standardized. it should physically fit and lock down fine.
as far as hardware conflicts in windows... i doubt there would be any (but i dont know for sure). if there is you could fix them. usb3.0 upgrades should be fairly commonplace by now so there should be something available if you search google.
Many thanks for your advise. Where do I connect a four pole Power-connector on the motherboard?