Meet the PhotoFast Video Capture and Storage Kit for iOS devices. It consists of a 64GB microSD U3 memory card and a Lightning to microSD Card Reader, allowing users to play content from the card reader conveniently. The memory card is ideal for storing 4K video and images.
The card reader is MFi certified. You also get a MicroSD-to-SD adapter to connect PhotoFast to your MacBook and other devices. Ships under $80 at this time.[where to get it]