SanDisk Extreme Pro 128GB SDXC UHS-I Card (SDSDXXG-128G-GN4IN) Product Features Ideal for professionals looking to maximize post-production workflow Read speeds of up to 95MB/s; write speeds of up to 90MB/s UHS speed Class 3 (U3) and video speed Class 30 (V30) for 4K UHD video Shock-proof, temperature-proof, waterproof, and x-ray-proof Lifetime limited Warranty