This is a brand new and factory sealed Allen-Bradley 1756-L55M12 model, designed as a ControlLogix 750KB memory expansion. It is perfect for those in need of an upgrade or additional memory for their industrial automation and motion control systems. With its reliable performance and compatibility with various PLC processors and HMIs, this product ensures smooth operations in your business or industrial setting. Get your hands on this top-of-the-line ControlLogix expansion and take your automation and control capabilities to the next level.