TEAMGROUP ELITE SDXC UHS-I U3 High Speed Memory Card has a read/write speed of up to 100/50MB. At the same time, it supports VideoSpeed Class 30 (V30) and the current mainstream 4K Ultra HD video recording, so you can fully enjoy the fun of photography. Functions ofwaterproof, anti-shock, anti-X-ray, anti-static, and etc. offer your data an all around protection.