By now there are countless flash cards designed to sit perfectly inside the MacBook Air's SD card slot and boost the laptop's storage as an extra. When inserted into the card slot of a MacBook Air, the low-profile JetDrive Lite won't stick out like a normal memory card and can even be left in place for on . Which SD Card Slot storage solution is best for the MacBook Air? Which models are compatible? Is this kind of storage safe? If you ever found yourself.