The OEM UHF module ST-MO4 embeds the R2000 chip. This powerful and miniaturized OEM RFID module has 4 antenna ports, it can integrate easily into your hardware. Specifically designed for IOT applications, the ST-MO4 RFID OEM UHF module comes with an intuitive Software Development Kit SDK and a development board with RS232 port and a configurable I / O port with GPIO to you facilitate development.