... port USB HUB 2.USB 2.0 Version 3.OEM service 4.Professional manufacture 5.Fast Delivery time 4 Port USB HUB Feature :1) USB HUB ... vidicon, audio-system, display, U disk,5) Single chip integrated USB HUB controller with embedded proprietary processor6) 4 ports, and power ... road or at home.Perfect for connecting USB 1.1or 2.0 perpherals such as USB mouse, scanner, digital camera, digital vidicon, audio ...