Usage Tips:Support STC MCU download Support 115200 high baud rate Support serial port setting debugging Distribute serial port debugging software No external supply, USB port to the computer Application: MODEM machine 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 4 terminal block The driver download link http://.mediafire./file/ab3qg44e69693ll/USB_ percent 25E9 percent 25A9 percent 25B1 percent 25E5 percent 258A percent 25A8340 percent 252BXP percent 252BW7./file Colour:black Material:Plastic and Metal Size:Length: about 30cm Package Contents: 1 x USB to RS485 Converter Adapter Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.