This SanDisk Max Endurance microSDXC Card is designed to record up to 120,000 hours of continuous footage in a variety of environments, including extreme heat and freezing temperatures. Don't worry about your files wiping on your travels, these cards are x-ray, shock and waterproof. It has the speed you need with up to 100MB/s transfer and read speeds and the ability to store videos in Full HD or 4K.-It is ideal for use in extreme temperatures for long hours of footage.-It has a capacity of 256 GB.-It can read speeds of up to 100 MB per second.-This memory card can be slotted into your computer, security or digital camera, gaming or mobile device.-It is shock-proof, temperature-proof, waterproof and x-ray-proof.-It is designed to record up to 120,000 hours of footage and has the capacity to record in Full HD or 4K. :SandiskDescriptive Colour:WhiteFlash Memory Type:Micro SD CardProduct Dimensions (mm):14.99W x 1.02D x 10.92H mmProduct Weight (kg):0.0045 kg