What is the speed of the Ethernet ports on the back on the AMP / Port devices?  I know music streaming isn’t bandwidth intensive but in my older Sonos ZP100 I’ve been using these ports to power a simple IP device.  The ZP100 ports are 10mbps and I was hoping the newer models were faster - but can’t find it in the documentation.  I’m hoping 10/100 - and Gigabit if I’m lucky.  Anyone know for sure?