Usb 20 stick memory size 64 gb read speed 8 mbs write speed 7 mbs backward compatible with usb 11 memory type flash memory dimensions 28 1 x 12 25 x 4 5 mm material metal series transcend jetflash special feature splash proof certificatessafety fcc bsmi manufacturers warranty 30 years weight 32 g additional information read and write speed may vary depending on the capacity compatible operating systems linux 24 mac os 9 windows 2000 windows