Usb Configuration - ASROCK H81M-HG4 User Manual

H81M-HG4/H81M-DG4/H81M-VG4

4.4.7 USB Configuration

USB Controller
Enable or disable all the USB 2.0 ports.
Intel USB 3.0 Mode
Enable or disable all the USB 3.0 ports. It is recommended to select [Smart Auto].
Legacy USB Support
Enable or disable Legacy OS Support for USB 2.0 devices. If you encounter USB
compatibility issues it is recommended to disable legacy USB support. Select UEFI
Setup Only to support USB devices under the UEFI setup and Windows/Linux
operating systems only.
Legacy USB 3.0 Support
Enable or disable Legacy OS Support for USB 3.0 devices.
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