Usb 30 stick memory size 256 gb read speed 35 mbs write speed 20 mbs backward compatible with usb 20 memory type flash memory material plastic series intenso speed line manufacturers warranty 2 years weight 8 g additional information read and write speed may vary depending on the capacity compatible operating systems mac os x 106 linux 24 windows xp windows vista windows 7 windows 8 windows 81 fastener with cap colour black