This Allen-Bradley 440R-EM4R2D Guardmaster GSR EMD Delayed Output Expansion Module is a reliable and efficient PLC Processor Module for industrial automation and motion control applications. It is designed to work with Guard PLC controllers and is suitable for use in a variety of industries. With its high-quality construction and advanced features, this module is an excellent choice for anyone looking to upgrade their PLC system. It is easy to install and configure, and is sure to provide reliable and accurate performance for years to come. So why wait? Order yours today and experience the benefits of this top-of-the-line PLC Processor Module!