Hello. On my Arcade Stick's PCB, there are 4 solder points for the USB connection, however my USB cable has 5 wires (two of which seem to be ground wires). I asked my friend who is much more savvy than I am, and he thinks that the additional black wire is for the cable's shielding, but he does not know if it needs to be connected. What I would like to know is: can I completely ignore this shielding wire (leave it off the PCB entirely)? Should I even bother attempting to solder it to the other ground and into the single ground connection point on the PCB?
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