This is a brand new, factory-sealed Allen-Bradley 1747-ASB SER A SLC 500 I/O Adapter Module for PLCs. It is designed for use with SLC 500 controller platforms and is categorized under PLC Input & Output Modules, PLC Peripheral Modules, PLCs & HMIs, Industrial Automation & Motion Controls, and Business & Industrial. This module is perfect for anyone looking to upgrade or expand their existing PLC system, and it comes with a variety of useful features that are sure to make your work easier and more efficient.