RJ45 to RS485 RS232 serial port Modbus rtu to tcp mqtt and plc remote download 4g router with sim card
Original Master-slave HC-05 HC05 2.4G BLE RF Wireless Industrial Transceiver Module RS232 / TTL to UART with 6 Pin
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$1.98 - $3.10
Min Order: 1 piece
Shipping per piece: $4.16
ZLAN8304N2-5 2 ports 4 RJ45 3G 4G Wifi Ethernet RS232 RS485 RS422 Mutual Convert Router Switch modem N2N serial device server
RS232 to TTL Serial Port Converter Module Female DB9 Connector MAX232 Flashing Board
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$0.27 - $0.34
Min Order: 1 piece
Shipping per piece: $4.16