This driver is only for the models that have a USB-C console port This port is a built-in serial > USB converter, so you can plug it right into your PC (will need to install the included USB > serial driver) Examples: ICX7150 ICX7550 ICX7650 ICX7850 Models that have a USB-Mini console port are NOT USB, and they do not speak USB It is still an RS232 serial port, just using a USB mini connector Do NOT attempt to plug this directly to your PC via USB Examples: ICX6650 ICX7250 ICX7450 ICX7750 On these switches, you need brocade's USB Mini > DB9/RJ45 serial cable Example: https://www.ebay.com/itm/143938618586?hash=item21836904da