Note: I will not use local input of Sonos Connect
Best answer by MikeV
You'll need to wire a least two, and you could daisy chain five additional off of those two each. However, I'd recommend wiring each Connect to a switch, and wire that switch to your router. PLEASE do what you can to make sure it's an unmanaged switch, for ease of setup (managed switches often block the kind of packet that Sonos needs to send unless they're properly configured). Also, make sure it's not on the incompatible hardware list.