The prob is,
on Sierra i have ejecting all usb's with GenericUSBXHCI.kext + USBInjectAll.kext + X99_Injector USB 3.kext (fig 1)
and ports limit 15 to 30.
on High Sierra I've tested all the possible combinations without success. (fig 2)
is there any idea for this?
my mind goes perhaps to need new 15 to 30 limit for high sierra.