Key Features of the SanDisk Ultra 64GB 100MB/s SDXC UHS-I Memory Card 64GB Class 10/U1 Max/UHS-I Storage Capacity Speed of Reading: 100 MB/s Min Speed of Writing: 10 MB/s Documents Full HD Video Documents Features of the Built-In Write-Protect Switch Water, Shock, X-Ray, and Temperature Proof Raw and JPEG Photos Amount One SDXC card type for storage Bus Type UHS-I Speed Class 10 UHS Speed Class U1 Capacity 64 GB Maximum Read Speed: 100 MB/s (Burst) Speed of Writing: 10 MB/s Minimum Sturdiness Yes, it has an integrated write-protect switch and is X-ray, shock, and temperature-resistant. Ability to Connect Wirelessly Not in the box Memory Card SanDisk Ultra 64GB 100MB/s SDXC UHS-I