... Design Folding USB2.0 usb hub 4 port driverDetailed Product Description:1,folding new usb hub with 4*2.0 port,fully compliant with ... to 480Mbps single chip integrated processor,2,support four bus-powered USB hub controller with embedded propriety processor,support four bus-powere ... overall system cost.provide up to 500mA current to each port which is sufficient for diverse devices,4,HOT PLUG&PLAY ...