The USB20 VideoAudio Capture Device is typically a hardware device that allows you to capture video and audio from an external source (such as a camcorder, VHS player, or other video output device) to your computer via a USB 2.0 port. These devices are often used for video editing, recording, or streaming purposes, especially for older analog video sources. The driver for this device enables the computer to communicate with the hardware, allowing it to function properly within the operating system.