It may not sound like a lot at first, but compare it to the popular 32GB memory cards, which contain only 16,000 photos, 8,000 songs and 7 Full HD movies.
The world's largest microSD memory card previously had 256GB capacity, which is only about half of this new record card. It is a big breakthrough in technology, especially when you compare it to storage only 2 years ago.
In short, you can store a lot of things on this memory card, maybe more than you need. It can hold hours of 4K video and even open the road for 8K videos.
This 400GB microSD card is priced at $ 250 but is still much cheaper than the 200GB microSD that costs $ 400 in 2015.