Usb 20 stick micro usb stick memory size 16 gb other interface micro usb backward compatible with usb 11 memory type flash memory dimensions 33 x 12 3 x 8 1 mm materials metal plastic certificatessafety fcc rohs bsmi weee kcc manufacturers warranty lifelong weight 33 g additional information read and write speed may vary depending on the capacity compatible operating systems windows 8 windows 7 windows vista windows xp windows 2000 mac os 10 lin