User`s manual

70 BIOS Setup Utility
Disabled Set this value to prevent the use of any USB device
in DOS or during system boot.
Enabled Set this value to allow the use of USB devices during
boot and while using DOS.
Auto This option auto detects USB Keyboards or Mice
and if found, allows them to be utilized during boot
and while using DOS.
Port 64/60 Emulation
It uses USB to receive the IO port 64/60 trap to emulate the
legacy keyboard controller.
USB 2.0 Controller Mode
The USB 2.0 Controller Mode configures the data rate of the
USB port. The options are FullSpeed (12 Mbps) and HiSpeed
(480 Mbps).