Usb 20 stick memory size 8 gb read speed 7 mbs write speed 3 mbs encryption 256 bit aes backward compatible with usb 11 memory type mlc nand flash series philips urban edition manufacturers warranty 2 years preinstalled software norton internet security trail additional information read and write speed may vary depending on the capacity compatible operating systems linux linux 24 mac os 9 windows 2000 windows 98 windows me windows vista windows xp