Usb 30 stick memory size 32 gb read speed 100 mbs write speed 50 mbs backward compatible with usb 20 memory type flash memory dimensions 61 8 18 7 10 7 mm material aluminum series adata superior weight 13 g additional information read and write speed may vary depending on the capacity compatible operating systems mac os 10 windows 7 windows vista windows xp fastener with cap colour black