Usb 30 stick memory size 128 gb read speed 140 mbs write speed 70 mbs other interface lightning backward compatible with usb 20 memory type flash memory material plastic certificatessafety ce fcc bsmi kcc weee rohs manufacturers warranty 2 years weight 13 g additional information read and write speed may vary depending on the capacity compatible operating systems ios 7 mac os x 103 windows xp windows vista windows 7 windows 8 windows 10 li