The Dahle 40534 Small Office High Security shredder is designed for military, federal, state or local governments as well as Department of Defense contractors engaged in projects where National Security is an issue. This Dahle 40534 is NSA approved for NSA/CSS Specification 02-01 capable of reducing a sheet of paper into over 15,500 tiny particles. Designed to be used in a small department for the destruction of top secret documents, the Dahle 40534 is built with a 12" feed opening to accommodate both letter and legal size paper with ease. It has full electronic capabilities including Automatic Shutoff when the cabinet door opens and Auto Reverse to prevent an over feed, as well as Automatic On/Off and Bag Full Auto Off notifications. Equipped with a built-in EvenFlow Lubricator automatic oiling system, peak shredder performance is ensured with a slow, continuous lubrication process across the entire cutting head. Revolutionary SmartPower Energy Management System reduces power consumption after ten minutes of sitting idle, and completely powers down after an additional 20 minutes of inactivity, saving electricity.