ZMD 3 in 1 Lightning iFlash USB SDHC Micro SD OTG Card Reader for Android iPhone 5 6 6 Plus iPad Please note: It supports IOS8.0 IOS 9.0 systems ; This i-Flash Drive is Built-In Memory and It is not expandable ; and You need to download the "istick" or "i-FlashDrive HD" APP on your device, otherwise, it will not work well Document viewer for all major file formats; Support Dropbox; Backup and restore your contact list Manage all your data directly on the iOS device (i.e. copy, move, delete, rename and move) Synchronize directly to transfer data between the USB flash drive and the device - without using iTunes Playback videos / music streaming directly from this external memory