Micro SD TF to SD Card Kit Mini Adaptor for Extra Storage Macbook Air / Pro / Retina;Support Micro SD / Micro SDHC / Micro SDXC | Work for Extra Storage ( Please make sure your macbook with SD card slot first) : MacBook Pro 13": Mid 2009, 2010, 2011, 2012, 2013, 2014 | MacBook Air 13": Late 2010, 2011, 2012, 2013, 2014 ; MacBook Retina 15": Mid 2012 | Note: SD card cannot plug in fully : MacBook Retina 15": 2013 or later ==>will be out of 3-5mm ; MacBook Retina 13": Mid 2012, 2013, 2014 ==>will be out of 3-5mm | Package includes 1 piece white adapter , memory card not included . 20mm approximately Micro SD TF to SD Card Kit Mini Adaptor supports Micro SD / Micro SDHC / Micro SDXC