application: MODEM CNC machine tools Industrial instruments and meters Detecting equipment monitoring system Automatic control equipment and notebooks Software supports WIN98, WIN2000, WINXP, WIN7, WIN10, VISTA Special support for WIN7 32 and 64-bit RS485 to USB Support STC MCU download Support 115200 high baud rate Support serial port setting debugging Distribute serial port debugging software No external power supply, USB port to the computer 4 terminal block Length 30 cm