US Plug RS232 RS485 RS422 To Ethernet Server Adapter 4 Ports Support 10 100Mbps
UART Interface: 4 RS232 or 4 RS485 RS422 Composite Ports (Using Adapters). Item Type: RS232 RS485 to Ethernet Converter. Equipped with 32bit ARM processor, it makes the data more stable. 1 x Serial Server.