1. Devices that do not support the "Lightning" and "USB-A"interface (✕)
2. NoT support for charging-only USB-C ports (✕)
3. Some SD/TF cards with encryption or special formats (such as camera-specific formats) (✕)
4. Android phones and tablets that do not support OTG function (OTG support can be checked in settings or official specifications) (✕)
1. Make sure the card is inserted in the correct orientation
2. Devices that support the OTG function, enable OTG on your device and find the SD card in the settings.(Older devices or systems may take around one minute to recognize the device.)
Insert the SD card into the reader > plug the device card reader into thhe iPhone(TYPE-C) > click on the "FILES" app > click on iCloud Drive's "Browse" > click on Browse's SD card name>Now you can view your files from your SD card on "Your SD card name"
Insert the micro SD first, then the SD. To remove, take out the SD first, then the micro SD — it’s easier this way.
Data transfer rates are subject to the speed of the memory card itselfand your computer's USB-C ports.The SD card reader is USB 3.0 version, the theoretical of USB-C port transfer speed is 5Gbps; for micro SD/SD slot, theoretical speed is UHS-I (104MB/s)