The EVDO PCUI Interface driver in Windows is typically related to EVDO (Evolution-Data Optimized) technology, which is a 3G wireless broadband standard used by some mobile network providers. The PCUI refers to the PC User Interface, which is the software interface used for managing and controlling the EVDO device, such as a mobile broadband modem, USB dongle, or mobile hotspot device.

EVDO devices are commonly used for connecting to the internet via cellular networks, and the driver provides the necessary software for Windows to interact with the device, allowing for mobile internet connectivity and managing the settings.