The Microtune ATSC Capture Device is typically a hardware component used for receiving ATSC (Advanced Television Systems Committee) digital TV signals. These devices are commonly used in TV tuner cards, USB TV tuners, or other similar devices that allow you to capture over-the-air digital TV broadcasts (like HD television) and watch them on your computer. The Windows driver for the Microtune ATSC Capture Device enables your Windows operating system to communicate with the hardware, so that you can use it for TV viewing, recording, or other media-related tasks.