Usb 30 stick memory size 64 gb read speed 100 mbs write speed 20 mbs backward compatible with usb 20 memory type flash memory dimensions 47 x 21 x 8 mm material aluminum weight 10 g additional information read and write speed may vary depending on the capacity compatible operating systems windows xp windows vista windows 7 windows 8 linux 24 mac os 10 fastener retractable usb plug colours blue black rose