In real hardware assemblies, PCBs rarely operate in isolation. Power, signals, and communication lines must move between boards, external modules, and system backplanes. If connections rely on loose wiring or non-standard interfaces, they can introduce signal loss, mechanical instability, and assembly variation. Over time, vibration, temperature cycling, and repeated servicing can weaken these connections. Board connectors solve this by providing a structured, repeatable electrical interface directly on the PCB.
