My pc has 2 USB 3.0 ports. Under device manager, both USB 3.0 Host Controller and Root Hub are installed properly. When I plug my passport to the SUB 3.0 port, it didn’t work. System shows it is still using the USB 2.0 driver. I tried to reinstall a USB 3.0 driver to the device and it still didn’t work.
The device works in the USB 2.0 ports.