Usb 20 stick memory size 8 gb read speed 15 mbs write speed 5 mbs backward compatible with usb 11 memory type flash memory dimensions 41 x 33 x 18 mm material rubber series emtec smiley world special feature splash proof additional information read and write speed may vary depending on the capacity compatible operating systems linux 24 mac os 10 windows 7 windows 8 windows vista windows xp fastener with cap colour yellow