A dongle that plugs into the USB ? My god dazdaz1, no need to be so antiquated !
Personal hotspots are the way forward....you can buy nice little personal hotspot gadgets off Amazon and stick your own choice of SIM in them.
MILES better than faffing around with USB dongles and their stupid drivers !
Of course, if gemma10 has an iPhone (or probably any other sort of mondern smartphone), gemma10 can just use that as a personal hotspot.