, Ideal for Android smartphones and tablets, and action cameras, and drones , Up to 170MB/s read and 90MB/s write speeds for fast shooting and transfers , Rated A2 for faster loading and in-app performance , 4K UHD-ready with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) , Built for and tested in harsh conditions; temperature-proof, water-proof, shock-proof and x-ray proof ,