Allen&Heath XONE 4D - Manual (Page 6)

Allen & Heath 6 XONE:4D User Guide
6— You will now be asked to unplug your Xone:4D
Note: Always use the same USB port with your Xone:4D. When installing on a MS
Windows system, the drivers will be associated with the USB port that you are currently plugged
into. If you attempt to use the 4D with another USB port, or without installing the drivers at all,
the system may work but with degraded performance (XP, Vista), or may not work at all (2000).
8— Once the driver installation is complete you will be
prompted to reboot your computer.
SOFTWARE INSTALLATION PC
7— You will now be asked to plug in your Xone:4D again.
The USB drivers will now initialise.