This is the Maxflash Action Hyperspeed Micro SDHC V30 Memory Cards 128GB, 64GB and 32GB Options Features: Recommended for Hero4 Black Edition cameras Ideal for all action/helmet cameras Waterproof, shock-resistant, xray proof Advanced U3 technology, fastest generation of micro SD cards Recommended for Hero4 Black Edition cameras. Ideal for all action/helmet cameras. Waterproof, shock-resistant, xray proof. Advanced U3 technology, fastest generation of micro SD cards. Up to 95mb. Optimized 4K recording at highest frame rate. 10 year manufacturers warranty.