The NISHISHIBA NPN36358 SGCPU-2 is a genuine central processing unit (CPU) board designed for use in various Nishishiba control systems. As a critical component, this printed circuit board is responsible for processing data and executing commands to ensure the stable and efficient operation of equipment, often found in generator control panels or automatic voltage regulators (AVRs). Manufactured to high standards by Nishishiba Electric Co., Ltd., this replacement part ensures compatibility and restores original performance, making it an essential spare for maintenance and repair of Nishishiba electrical machinery.