The SDSDU-064G is a 64GB SDXC Ultra card from WD/SanDisk Retail, marked by its Ultra C10 speed classification and 30MB/s transfer rate. This card is designed to cater to the needs of mid-range digital photography and video recording, offering ample space and speed for a wide variety of applications. From shooting high-quality still images to recording HD videos, this card provides a balance of performance and capacity that is ideal for DSLR cameras and other high-performance digital media devices. Its Class 10 speed rating ensures smooth video capture and playback, making it suitable for enthusiasts and professionals alike who require reliability without the extreme specifications of more costly options.