Usb 30 stick memory size 8 gb backward compatible with usb 20 dimensions 63 3 x 20 4 x 8 9 mm material rubber series transcend jetflash special features splash proof shockproof manufacturers warranty lifelong weight 124 g additional information read and write speed may vary depending on the capacity compatible operating systems mac os 10 windows 7 windows 8 windows xp fastener with cap