SanDisk Extreme Pro CFast 2.0 memory cards deliver the performance you expect from todays broadcasting industry, as well as professional in the film and photographic industry. With the speed, capacity, and performance needed for cinema-quality 4K video (4096x2160p), it can write speeds up to 450MB/s and data transfer speeds up to 525MB/s. Guaranteed video performance 130MB/sec (VPG 130) and storage capacity up to 256GB makes this a great memory card for professional cameras and camcorders.