A USB ADSL WAN Adapter is a device that allows you to connect your computer to an ADSL (Asymmetric Digital Subscriber Line) broadband internet connection via a USB port. These adapters are often used when a computer does not have a built-in Ethernet port or if you prefer to use USB for internet connectivity.

The USB ADSL WAN Adapter Windows driver is the software package that allows your Windows computer to communicate with and utilize the USB ADSL WAN Adapter properly. This driver facilitates the correct functioning of the hardware, enabling it to establish a stable internet connection through ADSL. Without the proper driver, the device may not be recognized or work correctly.