I use a TP Link Ethernet over AC adapter. It works great. I used to have one made by Netgear and it was noisy. The TP Link works great. Unfortunately I can't run hard wire from my router so it's the only way for me
I needed a switch so I bought a TP Link TL-SG2210P 10 port switch with 2 SFP slots
Each slot has a SFP fiber optic module . I use the TP Link MC220L fiber optic media converter connected via LC fiber optic cable to the switch.
One SFP module goes to my Vault 2i and ths other goes to my Aurender N200
TV , computer , and Blu Ray are connected via rg45
Total was around $250 for everything
Works great