Wikibox solution is what I do as well.
But don’t copy everything at once if you’ve got terabytes of data. The ssds get hot and can cause strange issues.
If you get an enclosure, make sure it’s aluminum, so it radiates more heat. There are a few that have fans in them too for those larger backups.
I’m doing 10gig over cat 5e runs of about forty feet.
Using Tplink switches and 10gig sfps