Usb 20 stick memory size 8 gb read speed 18 mbs write speed 5 mbs backward compatible with usb 11 memory type flash memory dimensions 56 x 20 x 8 mm material plastic weight 9 g additional information read and write speed may vary depending on the capacity compatible operating systems windows 7 windows 8 windows vista windows xp windows me windows 2000 mac os 10 linux 26 fastener retractable usb plug