UHS-I speeds in a small, durable card. Kingston's micro SD Class 10 UHS-I card features Class 10 UHS-I speeds of 45 MB/s read & 10 MB/s write, making it ideal for photographers who shoot everything from still images to kids & pets in motion. It's also ideal for cinema-quality HD (1080p) video & reduces buffer time between shots when compared to the Class 4 card. The smallest SD card available, micro SD Class 10 UHS-I is the standard expandable storage option for many tablets, smartphones & action cameras. Designed to withstand harsh environments, this versatile card is tested to be waterproof, temperature proof, shock & vibration proof & X-ray proof.