Would I ever need this? Most of the times if someone asks this question it indicates they don't. When would someone need this connection? I am thinking of getting a fairly base configuration for the Mac Mini 2018 and upgrade the RAM and add an external storage, if needed. 3.2GHz 6‑core 8th‑generation Intel Core i7 (Turbo Boost up to 4.6GHz) 8GB 2666MHz DDR4 Intel UHD Graphics 630 256GB SSD storage Gigabit Ethernet (10/100/1000BASE-T Gigabit Ethernet using RJ-45 connector) I would add another 16GB or 32GB; My current Mac Book pro runs on 16GB and its plenty for me.