The XVISION MANTIS DTV Adapter is a device designed for receiving digital television signals (DTV) and allowing you to watch TV on a computer. The adapter typically comes with hardware and software that enables users to tune in to DTV signals, whether it's for over-the-air HD television or digital cable channels, using your computer as the viewing device. The Windows driver for this device enables your operating system to communicate with the hardware, ensuring that it functions properly within your computer's setup.