The USB Devices item shows the
Legacy USB Support [Enabled]
•[Disabled] | The USB devices can be used only for the BIOS setup program. |
•[Enabled] | Enables the support for USB devices on legacy operating systems (OS). |
•[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. |
Legacy USB3.0 Support [Enabled]
•[Disabled] | Disables the function. |
•[Enabled] | Enables the support for USB 3.0 devices on legacy operating systems |
| (OS). |
EHCI
•[Disabled] | Disables the function. |
•[Enabled] | Enables the support for operating systems without an EHCI hand‑off |
| feature. |
ASUS |