The ZTE ATExt Port Windows driver is typically related to ZTE devices that use the ATExt Port, which refers to a virtual or physical serial port created by ZTE software for communication between a ZTE device (such as a USB modem, mobile hotspot, or other communication devices) and a Windows computer.

ATExt Port is often used in scenarios where the ZTE device functions as a modem, allowing the computer to communicate over mobile networks or other types of data services. In this case, the driver enables Windows to recognize the ZTE device and establish communication through the virtual or physical serial port.