I created a serial adapter that snapped securely onto the breadboard and could be withdrawn without disturbing power to the main project. As an added bonus, it may be included into a pcb project as a thru-hole usb2serial converter, eliminating the requirement for SMD soldering.
It was the serial adapter that clicked securely into the breadboard. It may be removed without affecting the main project's power. It may be used as a thruhole part on a PCB project.