Tekit&reg; High quality Micro Sd Tf to Sd Card Kit Mini Converter Adaptor for Extra Storage Macbook Air / Pro / Retina (White) Turns Micro SD card to SD card ,TF micro sd to SD converter adapter Conveniently expand the hard disk for MacBook Air or MacBook Pro The adapter is 1/3 shorter than normal SD card Supports an Micro SD / SDHC / SDXC card up to 64GB Can also be used as a dustproof plug