Medialink 4-Port Powered USB 2.0 Hub with External Power Supply Turns a single USB port into 4 USB 2.0 ports Transfers data at speeds of up to 480Mbps Equipped with rubber grips to stop sliding and top vertical port for convenience This hub is a standard USB 2.0 hub and WILL NOT CHARGE devices that require more than 500mA such as an iPad. Extermal power supply included for use with larger devices such as external hard drives