Boost your storage and performance with the Lexar High-Performance 633x microSDXC / microSDHC BLUE Series 64GB Card. With read speeds up to 100MB/s and write speeds up to 45MB/s, it delivers smooth 4K UHD video recording, fast app loading, and reliable data storage. Featuring Class 10, UHS-I (U3), V30, and A1 ratings, this memory card is perfect for smartphones, cameras, drones, and tablets, ensuring high-speed performance and durability.