Adafruit usb micro b breakout board adafruit 1833 p the adafruit usb micro b breakout board is for those projects that must have micro usb but sometimes they re just too tricky to solder or perhaps you aren t at the pcb stage yet most small devices have adopted the micro usb as the go to connector which is a great relief as we all have the cables to hand these sockets are fully soldered for strength and reliability and let you talk to your usb enabled microcontroller or simply provide 5v