This memory card offers fast transfer speeds up to 170MB/s read and 90MB/s write, making it ideal for 4K UHD video and burst photography. It supports U3 and V30 speed classes for smooth, high-resolution capture and is highly durable—waterproof, temperature-proof, shock-proof, vibration-proof, and X-ray-proof.   Card Type :SD Card Capacity :128 GB Class Rating :Class 10 UHS-I Series :Canvas Go Plus Read Speed :170 MB/s Write Speed :90 MB/s