This is a brand new, factory sealed Allen-Bradley 1747-ASB SER A SLC 500 Remote Adapter Module. It is a PLC Input/output Module that is designed to work with the SLC 500 Controller Platform. This model is highly sought after by those in the industrial automation and motion control industry. The 1747-ASB is a reliable and efficient module that is perfect for those looking to upgrade their PLC Peripheral Modules. It is suitable for use in a wide range of applications and is an essential component for anyone working in this field.