Designed for high endurance so you can record for up to 40,000 hours with no worries. (Actual hours of video saved less. Full HD (1920x1080) video only; total hours less for 4K UHD (3840 x 2160) video.) Built for and tested in harsh conditions; temperature-proof, waterproof, shockproof and x-ray-proof Save more videos with capacities up to 512GB Record in Full HD and 4K with Class 10, U3 and V30 video speed ratings. (Compatible device required. Full HD (1920x1080) and/or 4K UHD (3840x2160) video support may vary based on host device, file attributes, usage conditions and other factors. See HD website for more info.)