Usb 20 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 21 x 52 x 8 mm material aluminum manufacturers warranty 2 years weight 10 g additional information read and write speed may vary depending on the capacity compatible operating systems linux mac os windows 7 windows 8 windows vista windows xp fastener retractable usb plug