Let me guess, it's an air drive (you can tell easily as they look totally different , these are regular Red, well called now "Plus" even if there's nothing different, but you get the idea, the air is the one with a hole).
Just click on the link and then look at your drive, you should be able to spot the difference immediately. Does it look as the drive above (helium) or below (air with the characteristic venting hole and everything)?