... competitive price 3.CE&ROHS 4.professional manufacturer 5.OEM USB HUB USB HUB Feature: 1. USB2.0 HUB with 4 port2 ... , digital camera, digital vidicon, optical mouse, Keyboard, USB flash disk,etc.5. Supports up to 127 USB devices6. Truly plug & play and hot swapping ... for connecting USB 1.1or 2.0 perpherals such as USB mouse, scanner, digital camera, digital vidicon, audio-system, display, U disk,etc.