SD/microSD 2 slot card reader for iPhone, iPad, andoroid smartphones. The card reader itself is equipped with a lightning cable and a USB micro-B cable. USB Type-C devices can also be used with the included conversion plug. In addition, the product and smartphone are connected to a cable, so you can use your smartphone while in the cover or case. An SD card or microSD card can be used on smartphones and tablets of iOS or Android OS. Enjoy photos and videos as well. Note: About HEIF/HEVC: HEIF/HEVC (HEIF is a high-efficiency photo format and HEVC for high-efficiency video coding (HEVC) is used as a standard for new photo and video format. If you use this product to copy the photo files of the HEIC extension from the camera roll within iOS 11 or later to the SD card, the SD card will create a file with a HEIC extension that does not have thumbnails, but unlike other JPEG images, it cannot be viewed by tapping it.