The Mitsubishi PZ3M is a robust and reliable CPU control board designed for demanding industrial automation applications. Manufactured by Mitsubishi Kakoki Kaisha, Ltd. in collaboration with Koyo Electronics, this board serves as the central processing unit for various control systems. It features a durable green PCB construction, equipped with a standard DB9 serial port for communication and multiple pin headers for system integration. The inclusion of an onboard COSEL DC-DC converter ensures stable power management, making the PZ3M an essential component for maintaining or repairing legacy industrial equipment.