This USB 2.0 high speed 4 port hub adapter is designed for PC computers, providing four downstream USB ports compatible with USB 2.0 devices. It features easy access for quick connections of USB thumb drives, small accessories, and more. The hub supports connection of a modem, USB printer, scanner, and HD, and is compatible with Windows, MacOS, and Linux systems. Note: This hub does not apply to charging, only for data transmission.