FOUR IN ONE SD CARD READER COMPATIBILITY - This Card Reader is great compatibility for all your devices. It has four interfaces: lighting connector for iOS devices; Micro USB connector for Android devices (with OTG); USB connecto for computers/Macs; Type-C connector is for Type-C devices. UNIVERSAL MEMORY CARD READER FUNTION - Support FAT32 and exFAT formats to read 8G~128G TF or Micro SD card (NOT Included). Reading speed: 20~27M/S; Writing speed: 11~20M/S. SPECIAL FUNTIONS OF CARD READER - Transfer your important Photos, Music, Videos, and backup contact list; Secured private-Files encryption only support owner's device to read the data; Share the files on your Micro SD Card or TF Card using third-party apps shuch as Facebooks, Instagram,Snapchat, Twitter and more, like the photo or video in your gopro TF card, you can share it in few seconds. FREE APP FOR USB CARD READERS - You could please download the free app named "IUSB Pro" from app store for IOS system. Android and Type-C Smartphones do not download app, please enter to the phone "file manager" to operate.