AVerTV HD Bravo &ndash; PCI-E ATSC/ClearQAM Digital TV Tuner Watch Live TV, Record, Pause, Rewind, Playback HDTV on your PC with Windows XP, XP MCE 2005, Vista (32/64 bit), 7 TV Recording Scheduler and Electronic Programming Guide ATSC or Unencrypted ClearQAM Support (Digital Cable) High Definition quality support up to 1080i with 16:9 aspect ratio PCI Express x1, Low Profile Form Factor / Interchangable Low Profile Bracket