Usb 20 stick memory size 8 gb read speed 10 mbs write speed 3 mbs backward compatible with usb 11 memory type flash memory material plastic certificatessafety ce fcc rohs manufacturers warranty 5 years weight 9 g additional information read and write speed may vary depending on the capacity compatible operating systems windows 2000 windows xp windows vista windows 7 windows 8 windows 10 fastener retractable usb plug colour black