BIOS Advanced Menu USB Ports Options

The following table describes the BIOS Advanced Menu USB ports options.

Setup Options	Options	Defaults	Description
EHCI Hand-off	Disabled/Enabled	Disabled	Enable or disable Enhanced Host Controller Interface (EHCI) hand-off support. This is a workaround for operating systems without EHCI hand-off support. The EHCI change of ownership should be claimed by the EHCI driver.
Port 60/64 Emulation	Disabled/Enabled	Enabled	Enable I/O port 60h/64h emulation support. Enable this setting for the complete USB keyboard legacy support for non-USB aware operating systems.
Rear Port	Disabled/Enabled	Enabled	Enable or disable USB Rear Port.
Internal Port #0	Disabled/Enabled	Enabled	Enable or disable USB Internal Port 0.