Remote IO module Sale! As a leading Remote IO module Wholesaler, EBYTE provides kinds of Serial IO modules, Ethernet IO modules, and 4G IO modules online. The remote IO module is highly usable, and users can easily and quickly integrate it into their own systems to achieve 4G-based remote acquisition, ethernet control, and Serial port (RS485/RS232 )IO networking module for implementing remote control function. Support socket connection to remote server,support TCP/UDP,Support Modbus TCP/RTU protocol.