Module USB to Serial/TTL/Uart chip : Prolific PL2303 Driver : http://www.usb-adapter.com/prolific-pl2303-usb-serial-drivers/ http://domoticx.com/pl2303-usb-to-uart-bridge-drivers-windows/ for Windows 8/8.1/WIn 10 please check here : https://www.thitiblog.com/blog/5281 https://answers.microsoft.com/en-us/windows/forum/windows_10-hardware/prolific-usb-to-serial-comm-port-windows-10/0a4f8e48-7135-4434-9d10-349c9ce87fcf?auth=1