Key Features For New-Generation, High Performance Cameras & Camcorders Write Speeds of up to 240MB/s** for 64GB High Speeds for Full HD & cinema-quality 4K Video Recording (4096x 2160) Tested Under Extreme Conditions Designed in parallel with leading-edge camera manufacturers, the San Disk Extreme PRO CFast™ 2.0 memory card offers more than twice the shot speed of today's fastest memory cards. As the next generation CFast 2.0 memory card, it delivers the speed & capacity professionals need for Full HD recording specifications, including high-definition 4K video recording**. Next level write speeds help you keep up with the new generation of professional cameras & camcorders, while data transfer speeds of up to 515MB/s** make your post-production workflow more efficient. & capacities of up to 128GB** give you plenty of room for large RAW image files & the high-quality video that broadcast & cinema demands. For new-generation, high performance cameras & camcorders based on CFast™ 2.0 technology Extreme recording & shot speed up to 440MB/s** for 128GB & 240MB/s** for 64GB Ready to shoot cinema-quality 4K video (4096x 2160p)** Built for broadcast, cinema, & photography professionals Unprecedented transfer speeds of up to 515MB/s** Designed in parallel with leading-edge camera manufacturers