2X(USB to RS485 485 Converter Adapter Support Win7 Vista Linux WinCE5.0 L2U2)
Support System: XP, Vista, 7, Linux, MacOS, and WinCE5.0 drive. RS485 connector: to RS485 device. 1 USB to RS485 converter. USB-RS485 converter adapter. 2X( and high quality. USB connector: to PC. ).