Built to capture up to 60,000 hours (over 13 years)(for 128GB model)(1) of footage for your home security cameras or dash cam, the SanDisk MAX ENDURANCE microSD card is engineered not only for continuous recording and re-recording, but also for continuous peace of mind for years to come. Designed to last(1), this microSD card can withstand a variety of extreme weather conditions because its temperature-proof, waterproof, shockproof, and X-ray proof.(2) With capacities of up to 256GB , you can record and store more Full HD or 4K videos(3). And, with read speeds up to 100MB/s(5), youll be able to spend less time transferring and backing up video footage, and more time living life. 1GB = 1,000,000,000 bytes. Actual user storage less. (1)Actual hours of video saved less. Up to 120,000 hours/over 13 years for 256GB; 60,000 hours for 128GB; 30,000 hours for 64GB; and 15,000 hours for 32GB. Full HD video only; total hours less for 4K UHD video. (2)Card only. See product packaging and visit the SanDisk proof website for more information and limitations. (3)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. Visit the official SanDisk Video Knowledge Base website for more (4)UHS Speed Class 3 (U3) and UHS Speed Class 1 (U1) designate performance options designed to support real-time video recordingwith UHS-enabled host devices. Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. Visit the SD Association website for speed class details information. (5)Up to 100MB/s read speed, up to 40MB/s write speed. Based on internal testing; performance may be lower depending on host device, usage conditions and other factors. 1MB=1,000,000 bytes. (6)Registration required; terms and conditions (7)Visit the official SanDisk website for warranty details.