ASRock AB350 Pro4 User Manual - Page 63

USB Configuration, USB Controller, Legacy USB Support, XHCI Legacy Support

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4.4.7 USB Configuration USB Controller Enable or disable all the USB ports. 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. USB 3.0 Controller Enable or disable all the USB 3.0 ports. XHCI Legacy Support Enable or disable XHCI Controller Legacy support. 58 English

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English
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4.4.7 USB Configuration
USB Controller
Enable or disable all the USB ports.
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.
USB 3.0 Controller
Enable or disable all the USB 3.0 ports.
XHCI Legacy Support
Enable or disable XHCI Controller Legacy support.