@ryanc @bcoffy also a good one: Intel, who is the primary original designer of USB and an USB Implementers Forum member makes a cable that *looks* like an illegal A-to-A cable on first sight, but is actually legal because they disconnect vbus and they made an exception for debugging cables https://i.stack.imgur.com/PyeYG.jpg https://designintools.intel.com/c01-intel-svt-dci-dbc2-3-a-to-a-debug-cable-1-meter.html