@lalitk Ah catnip! Yes that's a tank of a switch. So the Telegartner M12 Gold, JCAT Optimo 3 Duo Power Supply and English Electric 8Switch Ethernet Switch would be retired? Then just the N1 or OPT BRIDGE 1000M Optical Isolator would be used? I'd like having less in the chain. Have you been in touch with Marcin? (Kids, He's behind Jcat and is very helpful)
Ok folks what does this have to do with a Roon Core? How you filter your ethernet matters; think of it like you would having clean power for you gear. If you have a revealing system, then using the old blue wire straight out of the wall can be improved upon.

