The VIA Labs VL820 is a USB 3.0 hub controller chip. USB hubs are devices that allow you to expand the number of USB ports available on your computer or other host devices, enabling you to connect multiple USB peripherals simultaneously.
The VIA Labs VL820 is designed to support USB 3.0 (SuperSpeed USB) and is backward compatible with USB 2.0 and USB 1.1 devices. It provides high-speed data transfer rates and reliable connectivity for various USB peripherals, including external hard drives, flash drives, printers, and more.
The VL820 is often used in USB hub products, allowing users to connect multiple USB devices to a single USB port on their computer. It can be found in various USB hub models from different manufacturers.