... digital camera, digital vidicon, optical mouse,Keyboard, USB flash disk,etc.Supports up to 127 USB devicesTruly plug & play and hot ... Supply ,No external power supply requiredSingle chip integrated USB HUB controller with embedded proprietary processorEasy for use and have ... at home. * Perfect for connecting USB 1.1or 2.0 perpherals such as USB mouse, scanner, digitalcamera, digital vidicon, audio ...