Support STC MCU download Support 115200 high rate Support serial port setting debugging Distribute serial port debugging software No external power supply, USB port to the computer Application: MODEM CNC machine tools Industrial instruments and meters Detecting equipment monitoring system Automatic control equipment and Software supports WIN98, WIN2000, WINXP, WIN7, WIN10, VISTA support for WIN7 32 and 64-bit RS485 to USB 4 terminal block The driver download link; http://.mediafire./file/ab3qg44e69693ll/USB_%25E9%25A9%25B1%25E5%258A%25A8340%252BXP%252BW7./file Colour:black Material:Plastic + 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 cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.