Save time with card offload speeds of up to 200MB/s powered by SanDisk Quick Flow Technology Pair with the SanDiskProfessional PRO-READER SD and microSD to achieve maximum speeds (sold separately) Up to 90MB/s write speeds for fast continuous shots Rated A2 for faster loading and in-app performance Built for and tested in harsh conditions; temperature-proof, water-proof, shock-proof and X-ray proof