The Okuma E4809-770-141-B is a main driver control printed circuit board for Okuma MIV series dual-axis AC servo inverters (commonly paired with models like MIV05-1-Bx, MIV0204-1-Bx). It serves as the central processing unit managing servo command decoding, PWM signal generation, encoder feedback processing, IGBT drive control, and multi-axis synchronization. Part of the E4809 VAC/control board family with CN connectors for motor/encoder interfacing and internal wiring. Plug-in design for reliable precision axis motion in CNC machine tools. Discontinued by manufacturer. [stock available]