1.usb hub 4 port driver 2.Foldable,Convenient to carry 3.USB2.0 4.Special ... Product Description:1,folding new usb hub with 4*2.0 port,fully compliant with the universal serial bus,specification version 1 ... 480Mbps single chip integrated processor,2,support four bus-powered USB hub controller with embedded propriety processor,support four bus-powere downstream ...