Usb 30 stick memory size 64 gb read speed 100 mbs write speed 27 mbs backward compatible with usb 20 memory type flash memory material plastic series sandisk ultra manufacturers warranty 5 years preinstalled software sandisk secure access additional information read and write speed may vary depending on the capacity compatible operating systems mac os windows 7 windows 8 windows vista windows xp fastener retractable usb plug colour black integra