IEI Integration NANO-9453 v1.10 - Manual (Page 168)

NANO-9453 EPIC Motherboard
Page 148
BIOS Menu 14: USB Mass Storage Device Configuration
Device ##
The Device## field lists the USB devices that are connected to the system.
Emulation Type [Auto]
Use the Emulation Type BIOS option to specify the type of emulation BIOS has to provide
for the USB device.
NOTE:
Please note that the device’s formatted type and the emulation type
provided by the BIOS must match for a device to boot properly. If both
types do not match then device’s behavior is undefined. To make sure both
types match, format the device using BIOS INT13h calls after selecting the