The USB20 TVBox Device typically refers to a device that allows you to connect your television to your computer via a USB interface. These types of devices are often used to provide TV signal reception (like digital or analog TV) or to stream content from your computer to a TV screen. The "USB20" indicates that it's a USB 2.0 interface device, meaning it connects to your PC through a USB 2.0 port.
The Windows driver for such a device is a piece of software that helps your Windows operating system communicate with the USB TV box hardware. Without the correct driver, your computer won't be able to detect or use the device properly.