MSI MS-9218 User Manual page 81

I/O Device Configuration
The sub-menu is used to configure I/O Devices for optimal system performance.
Integrated Device Control Sub-Menu
The sub-menu is used to configure the specified integrated device.
Legacy USB Support
Set to [Enabled] if your need to use any USB 1.1/2.0 device in the operating
system that does not support or have any USB 1.1/2.0 driver installed, such as
DOS and SCO Unix. Setting options: [Disabled], [Enabled].
BIOS Setup
4-13