Specifications: Product type = Flash memory, Capacity = 64 GB, Form factor = SDXC, Read speed (max.) = 170 MB/s, Speed class = Class 10, Video speed class = Class V30, UHS speed class = UHS Class 3 (U3), Interface = UHS-I, Product details: Transfer speed of up to 170 MB/s. A photo session doesn't do it alone. The faster you get your pictures into post production, the more time you have to get creative. Recommended for videos in 4K UHD Sometimes fast just isn't fast enough. The SanDisk Extreme PRO SD-UHS-I memory card provides the performance required to capture uninterrupted video in 4K UHD. Engineered for sequential burst mode photography. Capture uninterrupted video with UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)that enable sequential photography in burst mode. Durable and reliable The SanDisk Extreme PROSD-UHS-I memory card was designed to survive even the harshest weather conditions. It's temperature-proof, waterproof, shockproof and x-ray-proof. Recover images you accidentally deleted Includes an offer for RescuePRO Deluxe 2-year data recovery software which lets you restore images you accidentally deleted.