Professional-level performance you can trustQuickly capture and transfer high-quality photos and extended lengths of Full-HD and cinema-quality 4K video, with a read transfer speed up to 300MB/s (2000x). The cards also leverage UHS-II technology (UHS Speed Class 3 (U3)) for high-speed performance, so you'll power through post-production with super-fast file transfer from card to computer.Shoot high-quality images and stunning 4K videoUsing a DSLR or cinema-quality video cameras, you'll be able to leverage the latest photo and video features available for shooting high-quality images and extended lengths of Full-HD and 4K video.Dramatically accelerate your workflowLexar Professional 2000x SD cards offer super-fast speeds of up to 300MB/s read, dramatically accelerating your workflow from start to finish. With write speeds of up to 260MB/s, handle sequential burst mode and RAW plus JPEG effortlessly, so you never miss a shot.Designed for durabilityThese cards provide the performance you need to capture and store valuable data in a variety of elements. Lexar Professional 2000x SD cards are temperature-proof, shockproof, vibration-proof, and X-ray-proof.Backwards compatible at the highest UHS-I speedsFor versatility, the cards are also backwards compatible with UHS-I devices, performing up to the maximum thresholds of UHS-I speed capabilities. The cards also work with older, non-UHS-I devices,