Extreme speeds for fast transfer, app performance, and 4K UHD Ideal for Android smartphones, action cameras and dronesUp to 160MB/s read and 90MB/s write speeds for fast shooting and transfers4K UHD-ready with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) Rated A2 for faster loading and in-app performance Shockproof, temperature proof, waterproof, and X-ray proof Get the SanDisk  Memory Zone app for easy file management.