With this Gobe Explore 256GB SD Card you wont need to worry about running out of space. We have been shooting for the past 5 days straight and haven't had to switch memory cards yet. Features Include: Read speed 104Mb/s, Max. Write speed 70Mb/s, Class 10 / UHS-I / U3, Built for: Professional DSLRs, Full HD & 4K video, Water/Temperature/X-Ray/Shock Proof, Lifetime replacement warranty and Designed in Australia. Tested and approved by the team.