The Hawking pocket-size UH204 USB?2.0 Hub is designed to let you connect additional USB devices to your PC or Mac quickly and easily. The UH204 USB Mini Hub is so small that you can take it with you anywhere you go! With USB Bus power, there is no need for external power. The UH204 is Plug and Play so you can easily connect USB devices without having to open the case of your computer. This product is ideal for notebook and desktop users with limited USB ports. The Hawking UH204 USB Hub supports 1 upstream port and 4 downstream ports with data transfer rates of up to 480Mbps. With the Tiers Star Technology, you can connect up to 6 Tiers, or 127 devices simply by adding additional USB hubs. Use this Mini Pocket-size Hub to connect USB devices, including: Keyboard, Mouse, Modem, Network Adapter, WebCam, Digital Cam, and other devices.