I spent some time this morning putting together this picture that defines the USB configurations and pinouts for various USB types. The reason for this is that I want to make a Pi Zero CCTV using the popular motionEye software. I have made several using the Raspberry Pi 3 but am finding it too expensive for what application I am applying. Now, if I were using 2,3 or 4 CCTV then It would be a good deal to use the Pi 3. However, for a single CCTV it is too expensive. To this end, I may need to add a USB hub to the Pi Zero so I bought some tiny hubs on a single PCB this morning. It has 4 USB A Standard size with 1 microUSB B. All for $3.78 each and no shipping.