Usb 30 stick memory size 8 gb read speed 139 mbs write speed 43 mbs encryption 256 bit aes backward compatible with usb 20 memory type flash memory material aluminum series istorage datashur special feature waterproof certificatessafety fcc weight 20 g additional information read and write speed may vary depending on the capacity compatible operating systems windows 7 windows 8 windows 10 mac os 10 fastener with cap colour blue integrated s