Up to 160MB/s read speeds to save time transferring high-res images and 4K UHD videos. Requires compatible devices capable of reaching such speeds Up to 90MB/s write speeds for fast shooting. Requires compatible devices capable of reaching such speeds 4K UHD and Full HD-ready with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) Rated A2 for faster loading and in-app performance Built for and tested in harsh conditions: temperature-proof water-proof shock-proof and x-ray proof Get the SanDisk Memory Zone app for easy file management (available on Google Play)