Samsung's MB-MY256SB/AM microSDXC card sets a new standard for storage capacity and speed. With 256GB of space, this PRO Ultimate card is designed for tech enthusiasts and professionals looking for fast and reliable storage. It supports UHS Speed Class 3 (U3) and Video Speed Class 30 (V30), making it perfect for 4K UHD video recording and playback. The card also meets the A2 rating for faster app performance, ensuring that applications stored on the card run smoothly and quickly. Additionally, it comes with a card reader, providing convenience and speed when transferring files between devices. Whether it's for a smartphone, action camera, or drone, this Samsung microSD card delivers top-tier performance and durability.