The SanDisk High Endurance microSD Card 256GB gives you the peace of mind that your dash cam, home monitoring or security system will capture crucial footage when it happens, recording and re-recording worry-free. It’s built tough too—ready to record in extreme heat or freezing cold, and it’s shockproof, waterproof and x-ray proof. It’s also rated Class 10, U3 and V304 so it has the speed you need to record in Full HD or 4K. With this microSD you can record and save more video, and read speeds of up to 100MB/s let you transfer that footage fast. Features Class 10 speed rating allows you to shoot/record Full HD or 4K video and high quality photos Storage for your phone/camera/tablet to ensure you can carry on capturing every moment SanDisk cards are compatible with Android smartphones and tablets Read speeds of up to 100MB/s Temperature-proof, waterproof, shockproof and x-ray-proof Engineered to handle up to 20,000 hours of worry-free recording