Interface PCB are a category of electronic components designed to facilitate communication and connectivity between different systems or subsystems within an electronic device. These power supply interface PCB act as a bridge, enabling data transfer and control signals, often adhering to standard protocols like I²C or SPI. Interface integrated circuits can be customized for specific applications, ranging from simple signal conversion to complex protocol handling, enhancing overall system performance and integration. Their role is crucial in modern electronics, ensuring seamless interaction among diverse components.