Usb 30 stick memory size 64 gb read speed 55 mbs write speed 5 mbs backward compatible with usb 20 memory type flash memory dimensions 69 6 x 20 9 x 8 9 mm material plastic series transcend jetflash certificatessafety bsmi fcc ce manufacturers warranty lifelong weight 12 g additional information read and write speed may vary depending on the capacity compatible operating systems linux mac os windows 7 windows 8 windows vista windows xp faste