The WIZmag “WHY CABLE?” Espressif Edition explains how to build reliable connected products with ESP32 + Ethernet using a hybrid approach: Wi-Fi where you can, WIZnet Ethernet where you must. It features practical tutorials—from Ethernet + MQTT to resilient gateway design and real-time ROS2 control over W5500—plus hardware design tips to avoid common ESP32-CAM Ethernet/SPI pitfalls and enable dependable Ethernet + PoE camera builds. Packed with exciting ESP × WIZnet community projects and proven hardware options—from ultra-compact PoE nodes and smart display platforms to trusted Ethernet modules—this issue highlights why hybrid connectivity is ideal for industrial, IoT, robotics, and multimedia applications.