Micro usb stick usb 20 stick memory size 8 gb read speed 110 mbs write speed 5 mbs other interface micro usb backward compatible with usb 11 memory type flash memory series integral fusion special feature usb otg weight 3 g additional information read and write speed may vary depending on the capacity compatible operating systems windows xp windows vista windows 7 windows 8 windows 10 mac os 9 linux 24 fastener with cap colour silver