Usb 20 stick mini usb stick memory size 64 gb backward compatible with usb 11 memory type flash memory dimensions 18 75 x 16 17 x 6 80 mm special features waterproof shockproof certificatessafety fcc manufacturers warranty 10 years additional information read and write speed may vary depending on the capacity compatible operating systems windows 7 windows xp windows vista mac os 10 colours black white