BreadBro includes both a Mini-USB and a Micro-USB connector. Why? There's a few reasons.
In an educational environment, USB cables might go missing or grow legs and walk away. In the event that you lose a USB cable, or only have one type available, you can still use BreadBro.
Another reason that we include two USB ports is to allow users to choose the orientation of their BreadBro on their work surface. With a traditional Arduino/Breadboard holder, the relative orientation of the USB cable and the breadboard can't be changed.
With two USB ports, you can choose the orientation you prefer.
In our next post, we'll take a closer look at the most important element in the BreadBro Learning System - the Breadboard Guide Cards!