Asus KFN5-D SLI - Manual (Page 96)

4-30 Chapter 4: BIOS setup
USB 1.1/2.0 Controller [Enabled]
Allows you to enable or disable the USB 1.1/2.0 controller.
Configuration options: [Enabled ] [Disabled]
Legacy USB Support [Enabled]
Allows you to enable or disable support for legacy USB devices. Setting
to [Auto] allows the system to detect the presence of USB devices at
startup. If detected, the USB controller legacy mode is enabled. If no USB
device is detected, the legacy USB support is disabled.
Configuration options: [Disabled] [Enabled] [Auto]
USB 2.0 Controller Mode [FullSpeed]
Allows you to set the USB 2.0 controller mode to HiSpeed (480 Mbps) or
FullSpeed (12 Mbps). Configuration options: [HiSpeed ] [FullSpeed ]
BIOS EHCI Hand-Off [Enabled]
Enables or disables the BIOS EHCI hand-off feature.
Configuration options: [Enabled] [Disabled]