***** **********Best Quality Guranteed. *****[4K UHD] read/write up to 95/35 MB/s. V30 video speed Grade, UHD 4K video recording, UHD 4K gaming*****[App] A2 grade provides faster App loading performance for Smartphones & Tablets*****[Compatibility] high-speed camera, DSLR, camcorder, drone, gaming, smartphones, laptop, tablet, PC, dash cam, surveillance*****[Environment] waterproof, shockproof, Temperature-proof and X-ray proof*****[Support] 5-year limited warranty.