This is Gateway product made by WIZnet customer using WIZ107SR.
WIZ107SR and UART TO RS-232 board are built in the case like a picture below.
WIZ107SR and UART TO RS-232 board are connected through the Plat cable. The customer used the default firmware of WIZ107SR without other SW task.
Therefore, it comes with SW produced by WIZnet.
The following picture is the final product for sale. Putting the board into the case makes a good showing and quality.
Original Source : http://www.meraprojekt.com.pl/mp-w7100a-rs232.html