This Is a Sandisk 256gb Microsd Express Card.

This is a SanDisk 256GB microSD Express Card, designed for next-generation devices requiring high-speed data transfer.It boasts read speeds up to 880 MB/s and write speeds up to 650 MB/s, significantly faster than traditional microSD cards.The card features SanDisk ThermAdapt technology to manage heat during high-performance tasks like 5.3K video recording or intensive gaming.It is compatible with microSD Express, UHS-I, and UHS-II slots, though maximum speeds require a compatible Express host device.