1, 7 port USB hub 2, USB 1.1/2.0 is optioal 3, FCC and CE certifications 4, Support OEM 5, No driver required,plug ... your notebooks USB portSpecification:1.With latest 2nd generation USB HUB controller2. Interface :USB 2.0 interface,support USB2.0/1.1,3.Transfer rate: ... high speed 480Mbps,middle speed 12Mbps,low speed 1.5mbps4.System ...