-The Lexar Professional SILVER PLUS 64GB microSDXC™ UHS-I Card delivers 205MB/s max read and 150MB/s max write speeds1 to help you capture better photos and videos and to accelerate your workflow. Rated V30, it records 4K video at 60FPS for stunning, stutter-free footage. It’s water, temperature, x-ray, vibration, magnetic, shock, wear, and drop-proof and it comes with a lifetime limited warranty for maximum peace of mind.