... good for promotion 4.OEM usb hub (usb 1.1 and usb 2.0 for option) Features:Expands 4 USB port supply up to ... Driveless hot plug and playTransfer rate,high speed(480Mbps),full speed(12Mbps)Connectible onto USB ports on any PC,notebook,palmtop,PDA, ... Ibook,cube,power Mac and notebookDelicate design,exquisite appearance,especially ...