I am wondering a little bit about the amount of cables you need...
CAT7 is specified for 600Mhz, meaning (at least) 1Gb/s of traffic on IP-traffic. This is a lot more than WIFI, used i.e. by Sonos.
All other brands like Sony,Samsung,Panasonic etc connect a television with one (1!) ethernet cable.
A CAT7 cable consist of 4 pairs of drilled 2 wires, 8 wires in total in one cable. This cable is ending (typicaly) in an RJ45 plug.
If you need ten cables...where do you connect all the plugs?
Just wondering,
kiwi4all