The Microtune ATSC and NTSC Capture Device is a hardware device used to capture ATSC (Advanced Television Systems Committee) and NTSC (National Television System Committee) television signals. These are standard broadcast television formats used for receiving over-the-air TV signals. The device allows users to capture TV broadcasts on a computer, typically for applications like video recording, streaming, or editing.

The Windows driver for the Microtune ATSC and NTSC Capture Device enables the operating system to interface with the device, ensuring that it works correctly for capturing TV broadcasts. The driver also provides compatibility with software that can process and record these signals.