Usb 20 stick mini usb stick memory size 16 gb read speed 20 mbs write speed 4 mbs backward compatible with usb 11 memory type nand flash material plastic series toshiba transmemory manufacturers warranty 5 years weight 1 g additional information read and write speed may vary depending on the capacity compatible operating systems mac os 10 windows 2000 windows xp windows vista windows 7 windows 8 fastener without cap