The SDSQUNR-256G-GN6TA is a high-capacity, high-speed microSDXC flash card designed by WD/SanDisk Retail. With a storage capacity of 256GB, this card meets the demands of expansive file storage, including high-resolution photos, 4K videos, and large databases. It falls under the Ultra class, boasting a Class 10 speed rating along with UHS-I technology, enabling a transfer speed of up to 100MB/s. This feature ensures swift file transfers and quick access to your data, making it an ideal choice for photographers, videographers, and mobile device users requiring extended memory without compromising performance. Its compatibility with microSDXC slots expands its usability across a wide array of devices, from smartphones and tablets to action cameras and drones.