Advantech ARK-1250L User Manual page 59

Legacy USB Support

Enables Legacy USB support.
XHCI Hand-Off

This is a workaround for OSes without XHCI hand-off support.
USB Mass Storage Driver Support

Enable/Disable USB Mass Storage Driver Support.
USB transfer time-out

The time-out value for Control, Bulk, and Interrupt transfers.
Device Reset time-out

USB mass storage device Start Unit command time-out.
Device power-up delay

Maximum time the device will take before it properly reports itself to the Host
Controller.
47 ARK-1250L User Manual