I just got an M4 pro Mac Mini. I also have a late 2014 Mac Mini that I use as a file server. I sometimes need to transfer large files between the computers. If I connect them with a thunderbolt 2 to 3 adapter and tb3 cable will that allow a faster connection than the gigabit ethernet? Is the only option to do this to buy the $50 dollar mac dongle or are there other options?