USB to RS485 Converter Adapter
USB connector: to your PC
RS485 connector: to your RS485 device
No need external power, powered by USB port
Fully compliant USB 2.0 standard , backward compatible with USB1.1
Support System: Windows XP , Vista, Windows 7 , Linux , MacOS , and WinCE5.0 drive
Supports baud rate range : 75bps - 115200bps , up to 6Mbps
Work temperature range: -40°C ~ +85°C
Communication distance :1200m(max)
Dimension:6.1x1.6x1.3cm
should you need the driver you can download it here https://www.dropbox.com/s/1f67v6b69oyu7l9/CH341SER.EXE?dl=0