ArduSimple simpleRTK3B Micro RTK Boards expedite RTK projects with easy integration, a built-in RF connector, and high availability. The ArduSimple simpleRTK3B Micro uses Septentrio Mosaic-X5 and Mosaic-H modules to handle RF design and module integration. The devices require a smaller PCB area, so the space below the module can be used for other components.