Yes, router on a stick. :) I don't have a gigabit internet connection, but it should not be a huge issue for your typical unidirectional download or upload even

Yes, router on a stick. :) I don't have a gigabit internet connection, but it should not be a huge issue for your typical unidirectional download or upload even on a gigabit. Ethernet is full-duplex, so you'll be able to saturate either direction (just not at once).