A DVB-T device refers to a Digital Video Broadcasting - Terrestrial (DVB-T) tuner, which is used to receive digital television signals broadcast over the air (terrestrial broadcast) in certain regions. This technology allows you to watch over-the-air television on a computer or device via an external or internal DVB-T receiver (tuner).

The DVB-T Devices Windows driver is the software required for Windows to recognize and properly interact with a DVB-T tuner card or USB device. Without this driver, your system won't be able to detect the DVB-T device or use it for watching TV, recording broadcasts, or other functionalities.