SanDisk Ultra microSDXC and microSDHC cards are fast for better pictures, app performance, and Full HD video. Ideal memory for Android smartphones, tablets and also the Raspberry Pi, these A1-rated cards load apps faster for a better smartphone experience. With up to 256GB capacity, you have the capacity to take more pictures and Full HD video and capture life at its fullest. Built to perform in harsh conditions, SanDisk Ultra microSD cards are waterproof, temperature proof, shockproof, and X-ray proof. The microSD card is also rated Class 10 for Full HD video recording performance and a 10-year warranty. At-a-Glance Overview - Up to 98MB/s transfer speeds [16-32GB ONLY] - Load apps faster with A1 performance class - UHS Speed Class U1 and Speed Class 10 for Full HD video recording and playback - Ideal for Android-based smartphones and tablets - 10-year warranty Features and Benefits - Ideal for premium Android-based smartphones and tablets - Transfer speeds of up to 100MB/s [64GB-256GB ONLY; 98MB/s for 16-32GB] - Rated A1 for faster app performance and UHS Speed Class 1 (U1) and Speed Class 10 for Full HD video recording and playback - Waterproof, temperature-proof, shock-proof, X-ray proof and magnet-proof - Transfers up to 1200 photos a minute - SanDisk Memory Zone app lets you auto-manage media and memory for peak phone performance Specifications Capacity: 16GB, 32GB, 64GB, 128GB, 200GB, and 256GB MicroSDXC and microSDHC form factor Performance/speed: 64GB-256GB: Up to 100MB/s read speed, write speed lower. 16GB-32GB: Up to 98MB/s read speed, write speed lower MicroSDXC card dimension: 0.59in x 0.43in x 0.03in (15mm x 11mm x 1.0mm) Operating temperature: -13°F to 185°F (-25°C to 85°C) Storage temperature: -40°F to 185°F (-40°C to 85°C)