The Targus 4VU Magnetic Privacy Filter is designed for 14-inch displays with a 16:10 aspect ratio. By limiting the viewing angle, the filter helps prevent visual hacking and unauthorized viewing of sensitive information from side angles. The magnetic attachment system facilitates easy application and removal, allowing users to switch between private and collaborative viewing as needed. This product, part number ASM140W1GL, offers a practical solution for maintaining data privacy on laptops and monitors.