... usb 2.0 mini usb hub 4 portsBox shape usb 2.0 mini usb hub 4 portsBox shape usb 2.0 mini ... bus,specification version 1.1/2.0,full speed up to 480Mbps single chip integrated processor,2,support four bus-powered ... ports,3,built-in 3.3 voltage regulator allows single +5V operating voltage,resulting in reduced overall system ... LED show(particular models)5,OS:Win95 ORS 2.0,Win 98/se,Win 2000,WinME,and XP ...