The SanDisk Extreme Pro microSDXC UHS-I card, model SDSQXCD-256G-GN6MA, offers an impressive storage capacity of 256GB, making it perfect for capturing high-quality photos and videos. It supports the U3 and V30 video speed class ratings, ensuring smooth 4K UHD video recording without any interruptions. With its A2 rating, this card is optimized for faster app loading and performance on smartphones and tablets. The transfer speeds of up to 200MB/s read and 140MB/s write allow for quick file transfers, enhancing productivity. Manufactured by WD/SanDisk Retail, this flash card is designed to withstand challenging environments, being temperature-proof, waterproof, shockproof, and x-ray proof.