The 2Wire Gateway USB driver is a software component that allows your Windows computer to communicate with a 2Wire Gateway device when it's connected via a USB port. Typically, a 2Wire Gateway is a modem/router used for broadband Internet access, and it may come with a USB interface for connecting directly to a computer. However, many 2Wire devices are more commonly connected via Ethernet, and the USB connection might be less frequently used.
If you are specifically looking for a 2Wire Gateway USB driver, it likely means you're using a model that supports USB connectivity for either data transfer or modem configuration. The driver allows your Windows operating system to recognize and manage the USB connection between the computer and the 2Wire device.