MITX-6973 User Manual43VideoChoose to support which type of display OpROM，like Efi OpROM or Legacy OpROM，support both.Other PCI devicesOther PCI devices OpROM implantation strategy.3.2.10 USB ConfigurationLegacy USB SupportLegacy USB supports setting. To support USB devices in DOS mode, such as USBFLASH disk, USB keyboard, select this option as [Enabled] or [Auto]. Otherwise, select[Disabled].XHCI Hand-offTo determine whether BIOS takes control of XHCI or not when operating system do not supportXHCI.USB Mass Storage Driver SupportMass USB storage on-off.Port 60/64 Emulation
