Stellar Lite Micro Sized 32GB USB 2.0/USB OTG Storage for Android Tablets and Phones with Aluminum Housing USB 2.0/Connector for PC/Mac Micro USB connector for Android 4.0 & up - based smartphones/tablets 8GB: Up to 30MB/s Read, 15MBs Write 16GB - 64GB: Up to 30MB/s Read, 20MB/s Write Micro Size Driverless support for most operating system Compatible with Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, Windows ME, Linux 2.4 and later, Mac OS9, X and later Light and tough aluminum housing (1 grams)