CPU units with built-in Ethernet ports are essential components in industrial automation and control systems, designed for high-performance data processing and real-time communication. These units integrate a powerful central processing unit (CPU) with onboard Ethernet connectivity, enabling seamless integration into networked environments such as PLCs, SCADA systems, and IoT applications. Key features often include multi-core processing, ruggedized designs for harsh environments, support for industrial protocols (e.g., PROFINET, EtherCAT), and extended temperature ranges. Typical products in this category include programmable logic controllers (PLCs), industrial PCs, embedded controllers, and gateway devices. These units are widely used in factory automation, robotics, machine vision, and process control systems where reliable data exchange and robust computing power are critical.