I recently bought a refurbished HP EliteDesk mini to act as a server in my homelab. It, unfortunately, only has 1 Ethernet port. Does anyone have any experience in adding another Ethernet port to this system? It has 3 Display ports, which I definitely don't need, so space-wise I was thinking of replacing a couple of them, but I'm not familiar with the process.

Any advice? Is this even doable?