Usb 20 stick mini usb stick micro usb stick memory size 8 gb read speed 20 mbs write speed 5 mbs other interface micro usb backward compatible with usb 11 memory type flash memory dimensions 28 x 19 x 5 mm material plastic manufacturers warranty 2 years weight 2 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 8 mac os linux fastene