Features:*Dual USB3.0 ports connect an USB3.0 device to your notebook computer*10 times faster than high speed USB2.0*Installs easily into 34mm express card bus slot*Supports external power socket in order to supplying power for each USB3.0*Hot plug and play*Compliant with Express Card Standard Release2.0*connector up to 900Ma Max/portSystem requirements:*WINDOWS based notebook computer with availableexpress card slot*Windows XP,Windows Vista,Windows7 Accessories: *USB3.0 Express Card*Warranty Card*CD driver