Usb 30 stick memory size 64 gb read speed 60 mbs write speed 15 mbs backward compatible with usb 20 memory type flash memory material plastic certificatessafety ce fcc rohs manufacturers warranty 5 years weight 9 g additional information read and write speed may vary depending on the capacity compatible operating systems windows xp windows vista windows 7 windows 8 windows 10 fastener retractable usb plug colour black