Review on Enhanced Performance Monoprice Select Micro Charge Cable: Industrial Electrical Solution by Alan Singh

I bought this short cable to take apart as a proof of concept for a project I'm working on. I was surprised to see that the cable did not have a ground wire. A photo I've attached shows a cable I bought after I cut and stripped it. In this picture you can see 3 wires and a screen. The other picture shows the pin specification for USB.