[High Speed]: Transfer speed up to 80MB/s. Perfect for Full HD video, camera, HD camcorder and DSLR recording. [Good Performance]: Uses UHS-1 and Class 10 technology which is 2 times faster than ordinary SD card in performance. [Excellent Compatibility]: Compliant with SDHC standards (PC, Mac, etc). [Environment]: Waterproof, shockproof, temperature resistant, X-ray and magnetism resistant. [Support]: Gigastone Limited 5 year warranty.