I am wiring my breakout board and it has a USB port on it. Is the USB port there to supply the 5 volt power to it?

For our parallel breakout board (https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay#prettyPhoto/2/) the schematic will show the connections going from the BB to the drivers. The parallel breakout board uses the 25 pin parallel connection to communicate from the computer to drivers, and the USB is used to power the main-board itself, supplying 5V. Additional Information: Additional Information: Additional Information: