Usb 20 stick micro usb stick memory size 64 gb other interface micro usb backward compatible with usb 11 memory type flash memory dimensions 51 6 x 17 4 x 8 2 mm material plastic series transcend jetflash special feature usb otg certificatessafety fcc bsmi manufacturers warranty 2 years preinstalled software jetflash elite weight 5 g additional information read and write speed may vary depending on the capacity compatible operating systems windows