The SDSQXCU-064G-GN6MN from WD/SanDisk Retail is a high-performance microSDXC card designed for the demanding multimedia user. Boasting a storage capacity of 64GB, this Extreme Pro microSD card meets the needs of professional photographers, videographers, and mobile gaming enthusiasts. Thanks to its UHS-I interface, U3 speed class, and V30 video speed class, it supports ultra-fast read speeds of up to 200MB/s and write speeds of 90MB/s. This ensures seamless 4K UHD video capture and quick data transfer. The A2 rating implies superior app performance, allowing for faster app launches and better overall smartphone experience. Durable and reliable, this flash card is designed to withstand harsh conditions, making it ideal for adventurous users.