This is a 2-pack of 32GB SDHC Class 10 UHS-1 Memory Cards from Sony. They feature maximum read speeds of 94MB/s and maximum write speeds of 45MB/s, with minimum transfer rates of 10MB/s. They are water/dust/X-ray proof and resistant to UV light rays, magnets and static. Additionally, the cards are capable of withstanding extreme temperatures. Downloadable File Rescue software helps recover photos and videos, including 3D and RAW files, that have been accidentally damaged or deleted.