This board is useful when needing to have an Ethernet switch and a serial RS232 remote port in cramped spaces. With this board compact, portable machines equipped with a RS232 port can be built and connected to a computer via an Ethernet network connection. At the same time two more ports are available for connecting more devices without the need for more cables leading to a computer or an external switch.

Using an off-the-shelf WiFi Acces Point board connected to one of the Ethernet ports, the machine can be connected wireless to the computer. Inside the machinetwo more Ethernet ports and a RS232 port will still be available.

The power supply is 5V with a maximum consumption of 400mA.