... , digital vidicon, optical mouse, Keyboard, USB flash disk,etc.5. Supports up to 127 USB devices6. Truly plug & play and hot ... Supply ,No external power supply required10. Single chip integrated USB HUB controller with embedded proprietary processor11. Easy for use and have ... road or at home. * Perfect for connecting USB 1.1or 2.0 perpherals such as USB mouse, scanner, digital camera, digital vidicon, ...