256GB* capacity card is engineered to handle up to 20,000 hours of worry-free recording. It'S shockproof, waterproof, and x-ray proof, ready to record in extreme heat or freezing cold, and it's built tough too ready to capture footage in less than ideal conditions, like freezing or hot weather. ( 3) Save time with quick transfer speeds of up to 100MB/s(5), so transferring or backing up footage is a snap. The high endurance microSD card has a capacity of 512GB - video support may vary based on host device, file attributes, usage conditions. MicroSD is a trademark of SD-3C, LLC. All other marks are the property of their respective owners. See product packaging or the official SanDisk website for more information and limitations. 256GB, 128GB, and 64GB cards are available for up to 2,500 hours of video storage per month. Card only.