Usb 20 stick micro usb stick memory size 16 gb read speed 22 mbs write speed 16 mbs other interface micro usb backward compatible with usb 11 memory type flash memory material plastic special feature usb otg manufacturers warranty 2 years weight 29 g additional information read and write speed may vary depending on the capacity compatible operating systems windows xp windows vista windows 7 windows 8 windows 10 fastener with cap colour black