In my experience I would not waste a dime on the Media Converters on Amazon.
Quality Ethernet Switch (take your pick) I prefer the Edisoncreation Silent Switch OCXO with Upstream RJ45 cable NEET-1008-1: Neotech Ethernet RJ45 Cable, UP-OCC Silver, 1 meter feeding Sonore Optical Module Deluxe, (using Melco/Delia) C1 SFP + DAC (Direct Attach Cable) feeding Uptone Ether Regen, Downstream RJ45 Cable is FTA (Final Touch Audio) Metis feeding my Innuous Zenith.

