I’ve been using another set of these successfully for the last 3 years to provide wired Ethernet in my city home, which came with coax into all the relevant rooms, but no easy way to run CAT 5/6 wire. The setup has worked perfectly with Roon.
I got these 3 new adapters for another location, but I ended up not needing them because existing CAT 5 phone wiring could be repurposed for Ethernet. A pair sells new for $129.99 on Amazon, selling all 3 for $150 including USPS shipping and PayPal fees.