12-04-2013 07:25:59 AM
So to answer your question, you may connect any USB device to the port but do not expect the device to work.
12-17-2013 11:41:33 AM
Firmware updates are normally prepared and released by a manufacturer, Arris/Motorola in this case I believe. I recommend checking with their support online or via email.
Let us know if you have any other questions.
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