Current industrial applications that require high protection levels, fast on-site operation, etc. have led to the development of the Industrial Ethernet. In the past, people thought that only "military grade" products have high quality and reliable quality assurance. However, in today's market, connectors that are used in various professional fields likewise possess unparalleled strength in terms of technology and quality. Regardless of type, connectors should continuously undergo improvements to enhance performance, enabling them to adapt to harsh environments. Consequently, the RJ45 connector has adapted effectively to the development of Industrial Ethernet.