The "GIQ" suffix often indicates a specific OEM manufacturer (e.g., GIQUA or a white-label brand for corporate IT deployments). Because of this, Windows and macOS do include native drivers for the D3908-GIQ. You must install the correct driver to enable simultaneous video over USB and network connectivity.
You can also find model-specific links on the QGeeM Support Page under the D3908 section. Downloads - QGeeM d3908-giq docking station driver
This docking station uses technology for its video ports. You must install the official DisplayLink driver for your monitors to work properly. The "GIQ" suffix often indicates a specific OEM
After the installer reboots your PC (or finishes without reboot), plug the D3908-GIQ into a USB 3.0 or USB-C port. Windows will chime and begin installing additional device drivers automatically. d3908-giq docking station driver