San Disk Extreme Plus micro SD UHD-I card transforms the way you experience your mobile device with read speeds of up to 100MB/s** & Write speeds up to 60MB/s for advanced photo capture & faster file transfer. UHD video speed class 30 (V30) rating means your card is ready for advances in virtual reality & 360 degrees video recording. Durability-tested; waterproof, shockproof, x-ray proof, temperature proof. UHD Speed Class 3 (U3) rated for capturing full HD & 4K UHD video.