Plug and play, easy to use Multi-port expansion, no worry about insufficient interface Compact size, easy to carry Broad compatibility How to use: For iOS 12 or lower: After connecting the adapter, the import box will pop up automatically, and then select the photos you need to transfer. Under this system, the adapter can only transfer from SD / Micro SD / USB interface to iPhone / iPad, and can only transfer photos and videos. For iOS 13 and later: After connecting the adapter, the import box will not pop up automatically, you need to open "Photo" / "File" for transfer. Under this system, the adapter supports two-way transmission, and supports the transmission of photos / videos / files / music. Compatible with: iPhone 5 / 5S / 5C / SE / 6 / 6S / 6 plus / 6S plus / 7 / 7 plus / 8 / 8 plus / X / XS / XS Max / XR / 11 / 11 Pro / 11 Pro Max iPad 4 /iPad Mini / Mini 2 / Mini 3 / Mini 4 / Mini 5 / iPad Air / Air 2 / Air 3 / iPad Pro 9.7 inch (2016) Note: If the USB flash drive / Micro SD card / SD card is used directly with this kit, you must create a "DCIM" folder. Copy photos and videos to the DCIM folder. Rename each photo and video file to "IMG_XXXX". For example, if you have a .JPG file and a .MOV file, name them "IMG_0001.JPG" and "IMG_0002.MOV" respectively.