groundpinoutusbwire
I have this Micro-USB cable I am trying to attach to a new Micro-USB connector, but I don't know how I can wire it when it is missing a GND and has these additional wires. I assume the unshielded wires are all S-GND? But why wouldn't they be a single wire in that case?
Any ideas?
Use a USB3.0 hub, it has precisely the purpose. You will save on two long cables. With wiring like yours, you will not have any performance gains since you likely use the same root hub in your host system.
Use of passive adapters and extenders is not encouraged by USB specifications. Solder-down wire adapters are 99% doomed. Of course you can go full-blast and develop a junction box with carefully configured USB 3.0 repeater ICs (lookup Pericom or TI or else), but it will cost you a lot of efforts.
The USB 3.1 specification spells out exactly how to make this, and any other USB C -to- USB legacy cable. For a USB-A (2.0), the connection looks like:
Best Answer
Putting on a new connector is generally not worthwhile - even if you get the connectivity correct, it is hard to do it in a way that will be durable and lasting.
If you really want to do it though, the only truly reliable method for figuring out your puzzle is to go a continuity test from the intact end of the cable - eg, plug that end into USB socket, get a credible reference of the USB pinout, and figure out which signal is which.
If the other end is not standard USB (eg, unique product connector) you might have to do the test with the remains of the cut off end. Generally though a non-standard cable would have its non-standardness on the end you are trying to replace, and the remaining end would be a standard USB "A" plug.
Don't trust the colors, they've been known to be wrong in manufactured cables - there's no real expectation that anyone would ever cut a manufactured cable and try to join it to something else.