Designed with long-lasting endurance so you can record and re-record up to 60,000 hours (over 13 years) (for 128GB model) (1) | (1) actual hours of video saved less. Up to 120,000 hours / 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. Designed and tested in extreme conditions; temperature-proof, waterproof, shockproof and X-ray proof (2) | (2) card only. See product packaging and visit the SanDisk Proof website for more information and limitations. Durable design is magnet-proof, waterproof, shock-proof, and temperature-proof Records in Full HD and 4K (3) with Class 10, U3 and V30 (4) video speed ratings | (3) compatible devices required. Full HD (1920 x 1080) and / or 4K UHD (3840 x 2160) video support may vary depending 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 recording with UHS-enabled host devices. Video Rate 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. Compatible Devices: Compatible with Microsdhc, Microsdxc, Microsdhc Uhs-I and Microsdxc Uhs-I compatible with host devices.