The u-blox Universal GNSS Windows Driver is software that allows your Windows computer to communicate with u-blox GNSS (Global Navigation Satellite System) receivers. u-blox is a company that produces high-performance GPS, GLONASS, Galileo, and other satellite-based navigation systems. The "universal" aspect of the driver means it supports a wide range of u-blox GNSS devices, enabling them to function correctly with your Windows operating system.

These GNSS receivers are typically used for applications like navigation, surveying, asset tracking, and other location-based services. The driver ensures that the operating system can recognize the receiver and communicate with it, allowing data to be sent to the computer from the receiver.