128GB storage capacity lets you capture and store more high-resolution photos and videos without frequently changing cards Read speeds up to 250MB/s and write speeds up to 120MB/s help you transfer and back up media quickly Enjoy highly efficient UHS-I workflow with updated SANDISK QuickFlow technology SANDISK Memory Zone app simplifies backing up, organizing, and transferring photos and videos Engineered to perform in extreme conditions, the card is temperature proof, humidity proof, waterproof, shock proof, drop proof, magnet proof, X-ray proof, and wear-out proof Write-protect switch helps prevent accidental deletion or overwriting of files