This is a Printed Circuit Board Assembly (PCBA). It uses a Blue substrate as a whole, with various electronic components such as capacitors and chips densely distributed on it. The board is equipped with multiple RJ45 network interfaces, a design typically used in network devices such as routers, switches, or network server motherboards. It enables high-speed data access and transmission, meeting the requirements for network connection and data processing in scenarios such as multi-device networking or data centers. With a compact layout and high integration level, it reflects the demands of modern electronic devices for efficient data transmission and processing, and is suitable for application environments requiring stable network communication.