The article discusses the importance of backend technology in electronic devices, specifically focusing on PCBs and PCB mounts. It explains what PCBs are and how they function as the “brain” of the device. It also delves into the details of PCB mounts, comparing them with plate mounts and highlighting their differences in terms of cost, preference, modification, and quality. Overall, the article aims to provide a comprehensive understanding of PCBs and PCB mounts.