Extreme sports require extreme readiness. SanDisk Extreme microSDHC/microSDXC UHS-I cards deliver the speed, capacity, durability, and 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 and share unforgettable extreme sports video.