... necessary Driveless hot plug and playTransfer rate,high speed(480Mbps),full speed(12Mbps)Connectible nto USB ports on any PC ... Vista, Mac OS X, and Linux OS or aboveHi-speed downstream ports with USB a female connectorUser-friendly and ergonomic ... several color optionaStatus shows fashionableextensively compatible with scanner, digital camera,digital vidicon,optical mouse,keyboard ,usb flash disk,etc ...