Apacer 1TB Micro-SD Class10 V30 Memory Card – 1TB capacity, UHS Speed Class 3 (U3), Video Speed Class V30, Class 10 rating. Read speed up to 100 MB/s, write speed up to 80 MB/s, minimum write 30 MB/s. A2 Application Performance Class for fast app performance. Durable design with waterproof, shockproof, magnet-proof, X-ray proof protections. Limited lifetime warranty.