The Insignia NS DXA1 Digital TV Converter Box is a set-top box/appliance TV tuner that allows for analog to digital video capture. It supports broadcast formats such as NTSC-M and ATSC, and features two ports for external interfaces, including CATV/RF coax with F I/O. This unit is compatible with a universal range of products and comes complete in its original packaging, ensuring a tested and reliable conversion experience for your TV viewing needs.