The 128GB SanDisk SDXC Ultra Class 10 UHS-1 Memory Card is a Secure Digital Extended Capacity memory card. With 128GB of data storage capacity, the card provides ample space for photos and videos captured with your camera. It offers an SD Class 10 rating along with an Ultra High Speed Class 1 rating, featuring read speeds up to 30MB/s and write speeds of at least 10MB/s.