found at Camera House
The SanDisk Extreme PRO® CFast™ 2.0 memory card delivers the high performance the broadcast, cinema, and photography industries demand today. The card combines the speed, capacity and performance needed to record cinema-quality 4K video (4096x2160p)1. It delivers a write speed of up to 450MB/s* (128GB-512GB) [430MB/s for 64GB; 340MB/s for 32GB] and data transfer speeds, up to 525MB/s*.