Ok so I've read the post about this but so far no luck. I have a usb 3 pci card model PEXUSB3S44V. It shows up as below using lshw. This is stubbed in syslinux.cfg. I have the same result without it stubbed also. The card has power to the devices however I can not see the devices as usb pass through options in the webgui. Same with and without stub. When the card is stubbed in syslinux.cfg it shows under the other pci devices section in the webgui for the VM settings. Shows as Renesas Technology