The SanDisk SDSQXCZ-400G-GN6MA is a Micro SDXC Memory card with the Android Extreme Pro A2 specification. This card is optimized for the performance of Android applications, providing read speeds of up to 160MB/s, and write speeds of up to 90MB/s. This card is also shock and water-resistant, built with rugged construction to resist temperature extremes and X-ray exposure. It features SanDisk's proprietary advanced error correction technology, which provides more accurate data transfer and reliable storage to keep your media safe. It also offers an impressive 400GB of storage capacity, perfect for storing high-resolution photographs, 4K UHD videos and other large files.