The SanDisk Ultra MicroSDHC Memory Card is suitable for smartphones and tablets that run on the Android OS. It has a storage capacity of 32 GB and a Class 10 speed rating. SanDisk Ultra microSDXC and microSDHC cards are fast for better pictures, app performance, and Full HD video. SanDisk Ultra microSD cards are waterproof, temperature proof, shockproof, and X-ray proof.(2) The microSD card is also rated Class 10 for Full HD video recording performance and a 10-year limited warranty. – *1GB=1,000,000,000 bytes. Actual user storage less.Full HD (1920×1080) video support may vary based upon host device, file attributes, and other factors. Based on 4.1GB transfer of photos (avg. file 3.5MB) with USB 3.0 reader. The durability and dominance of the brand in the market is a world wide phenomenon for quality.