The SDSQUA4-1T00-GN6MN is a high-capacity, high-performance microSDXC card from WD/SanDisk Retail, renowned for delivering reliable storage solutions. With a whopping 1TB of storage space, it is ideal for expanding the storage on smartphones, tablets, action cameras, drones, and other devices compatible with microSDXC cards. It belongs to the Ultra A1 and UHS-I class, which ensures a minimum read speed of 120MB/s, allowing for quick file transfers and smooth high-resolution video playback. The card is designed to cater to A1 performance, indicating that it is optimized for apps, ensuring faster app launch and performance on mobile devices. This product is perfect for users who demand vast storage capacity for 4K videos, high-resolution images, music libraries, and more, without compromising on performance. Its robust build also withstands harsh conditions, making it water, temperature, shock, and x-ray proof.