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Many tend to over-simplify the problem, and, for example, believe they can simply apply the port-limit patch and install USBInjectAll.kext and be done with it. In fact, the port limit patch is known to cause problems (it causes access outside a fixed array bounds). Somewhat alarming is the fact that Multibeast includes the port limit patch without mention of its problems. Also, for each update, a new port limit patch may need to be created (as I write this, no working patch exists for 10.14.1, for example).
The fact: Using the port limit patch is not a long term solution. For reliable USB (assuming your ACPI implementation of _PLD and _UPC is broken... and you don't want to fix it), you must implement a custom SSDT for USBInjectAll.kext that configures your ports on XHC such that the port limit patch is not needed, and each UsbConnnector value is correct for each port.
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