Extreme sports require extreme readiness. San Disk Extreme micro SDHC/micro SDXC UHS-I cards deliver the speed, capacity, durability, & quality you need to make sure your adventure is captured in stunning detail, even if you blink on the way down. Now rated UHS Speed Class 3 (U3), this fast, high-performing card teams up with your action camera to let you capture & share unforgettable extreme sports video.