What is the best old model for a Plex Server?

I am looking at a 2014 i7 with 16gb or ram.

It seems to be super capable, but the port range isn't the best. with USB 3.0 type A and thunderbolt with the different video connector style.

I think I would be more and more limited in the future to find compatible cables to connect external hard drives.

Is this a real concern, and I should aim for newer minis with USB type C connectors?