... Chinese factory 2.plug and play,driver is not required 3.good for promotion 4.OEM usb hub (usb 1.1 and usb 2. ... second generation controllerNo external power supply necessary Driveless hot plug and playTransfer rate,high speed(480Mbps),full speed(12Mbps)Connectible ... any PC,notebook,palmtop,PDA,Ibook,cube,power Mac and notebookDelicate design,exquisite appearance,especially for office staffThe super ...