You may also pre-long activation of fully activated dongles after 1 year of usage for next 3 or 12 months. World's most popular driver download site.
Please note, all described operations you are doing at your own risk. If you want to assign the com port of the device to another port number, you can double-click on the device prolific usb-to-serial comm port to view properties. Reboot your computer to be on the safe side. Download Now VOLCANO BOX PROLIFIC USB DRIVER