This 4-Port Usb 2.0 Hub is a practical and reliable Otg expander engineered to solve port shortages for a wide range of devices, transforming a single Micro Usb port into four fully functional Usb 2.0 ports to connect a keyboard, mouse, Usb flash drive and charger all at once, for Raspberry, older Android tablets and personal computers. Its bus-powered design eliminates the need for a bulky external power adapter, with each port supplying up to 500mA of power for most common peripherals. Features true plug-and-play convenience, being automatically recognized by Windows, macOS, Linux and Android systems with no drivers or complex software required, plus hot-swapping support for safe on-the-fly device connection and disconnection. Boasting a slim, lightweight Abs body and an 11.8inch flexible cable, this compact hub is highly portable, fitting easily in laptop bags or pockets to create an instant workstation anywhere.