Usb 30 stick memory size 256 gb read speed 400 mbs write speed 300 mbs backward compatible with usb 20 memory type flash memory material aluminum series patriot supersonic certificatessafety rohs fcc ce manufacturers warranty 5 years weight 219 g compatible operating systems mac os 9 mac os 10 linux 24 windows me windows 2000 windows xp windows vista windows 7 windows 8 windows 10 fastener with cap colour black