Add extra 1 Ethernet for Raspberry Pi Zero / ZeroW B+ 2B 3B 3B+ 4B
Provide 3.3V power regulator for Ethernet chip use, not use 3.3V from Pi. Pi Zero Net Box spec. Ethernet connector provide TX, RX indicate Yellow/Green LED. 1x Rs-Pi Ethernet Lite 1xRJ45 NET HAT board.