Key item features High-Speed Performance: Class 10, U3, V30 speed class with read speeds up to 100MB/s and write speeds up to 90MB/s for fast HD photography and 4K Ultra HD videography. App Optimization: A2 App Performance enables apps to run directly from the MicroSD card, delivering faster app launch and performance with a minimum of 4000 IOPS (Read) and 2000 IOPS (Write). Versatile Compatibility: Record and transfer videos, photos, music, files, and more from MicroSD-enabled devices such as Android smartphones, tablets, action cameras, drones, and computers. Included Adapter: Comes with an SD adapter for compatibility with SD-enabled devices, including DSLR cameras, video cameras, desktops, and laptops. Durable Design: Reliable and durable design that is magnet proof, shock proof, temperature proof, and waterproof. 4K Ultra HD Ready: U3 technology and V30 Video Speed Class are perfect for capturing stunning 4K Ultra HD video and HD photos.