Our barcode scanner modules are equipped with two communication interfaces as standard: USB interface and TTL232 interface or RS232 , to meet different device connection and communication requirements.

Both interfaces support normal data communication for  barcode scanner module. We strongly recommend using the TTL232/RS232 interface as the preferred and default option. The main reason is communication stability.The TTL232/RS232 interface provides much higher stability than the USB interface. It features stronger anti-interference performance, ensuring more reliable data transmission and connection.