Arduino Ethernet Shield 2 with/without PoE The Arduino Ethernet Shield 2 comes in 2 versions: one with PoE (8732294) and one without PoE (8732285). The shields have been designed to integrate rapid internet connection into designs that use Arduino boards. Other shields can be stacked right on top of the ethernet shield, allowing for optimum functionality integration in designs. Both shields feature the Wiznet W5500 ethernet chip that provide an IP stack that supports TCP and UDP protocols. The W5500 also supports up to 8 socket connections at once.