The WD/SanDisk Retail SDSQXAV-256G-AN6MA microSDXC card is designed for users who demand high performance and large storage capacity without compromise. With 256GB of storage, it is well-suited for recording 4K UHD video, high-resolution photography, and accommodating a large library of games and apps. This card utilizes UHS-I U3 V30 A2 technology, offering impressive read and write speeds of up to 190MB/s and 130MB/s respectively, enabling faster file transfers and efficient multitasking. The V30 rating ensures that the card can handle a minimum sustained write speed of 30MB/s, ideal for recording flawless 4K video. Additionally, the A2 rating enhances app performance on Android devices, providing a smoother user experience for gaming and application use. As a product of WD/SanDisk Retail, this microSDXC card is built with state-of-the-art technology, ensuring reliability and durability for safeguarding precious data.