Asus M2N-MX SE - Manual (Page 70)

2-2 Chapter 2: BIOS setup
USB Mass Storage Device Configuration
USB Mass Storage Device Configuration
USB Mass Storage Reset Delay [20 Sec]
Device #1 Netac
Emulation Type [Auto]
USB Mass Storage Reset Delay [20 Sec]
Allows you to set the numbers of seconds POST waits for
the USB mass storage device after start unit command.
Configuration options: [10 Sec] [20 Sec] [30 Sec] [40 Sec]
Emulation Type [Auto]
Allows selection of the emulation type. If Auto, USB devices less than
530MB will be emulated as Floppy and remaining as hard drive. Forced FDD
option can be used to force a HDD formated drive to boot as FDD.
Configuration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM]