I added extra pads on the PCB so you can have easy access to the V+,GND,OUT+,OUT- signal lines on the board. This is useful if you’ll be using our FAB2010 XLR Input Module, and FAB3010 XLR Output Module in your own project and you just want to solder your voltage and control wires directly to the board (without using the Ribbon connector or a breakout board).