Features: brand new and high quality for CNC machine tools, industrial instruments and meters Detecting equipment monitoring system, for automatic control equipment and notebooks Software support Win7 32 64-bit Bit WIN98 WIN2000 WINXP WIN7 WIN10 VISTA RS485 to USB Support STC MCU download, 115200 high baud rate Support serial port setting debugging, for WIN7 32 and 64-bit No external power supply, USB port to the computer Specifications: Item: RS485 to USB Adapter Material: PVC features: 4 terminal block Length:approx 30 for cm/11.8in Support :Win7 32 64-bit Bit WIN98 WIN2000 WINXP WIN7 WIN10 VISTA Package Includes: 1 PC x RS485 to USB Adapter note: There might be a bit color distortions due to different computer resolutions. There might be size errors due to different computer resolutions.