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I've been doing this for years! FYI if you have XFinity or Verizon FiOS you get one end of this for free. All FiOS routers support MoCA, even if you're connected to the ONT with direct attach BaseT (it's used internally for the set top box LAN segment too). Also XFinity Cable modems (at least, the last one I had 2 years ago from them!) supported it too, but not out of the box, it was a hidden option in the settings menu. Depending on the gear, you could get as much as 2.5Gbps through the channels, but beware! just like WiFi, this is shared bandwidth for every device. Its also a bit sensitive to daisy chained coax splitters -- it prefers a flat topopgraphy for best signal performance (though you should really be doing that anyway). Also unlike WiFi, MoCa is really zero config needed past initial enable.