A New Level of Performance for Cameras and Camcorders Designed in parallel with leading-edge camera manufacturers, the SanDisk Extreme PRO CFast 2.0 memory card delivers the speed and 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 and camcorders, while data transfer speeds of up to 525MB/s make your post-production workflow more efficient. With 64GB or 128GB you get plenty of room for large RAW image files and the high-quality video that broadcast and cinema demands.Built For New Generation, High Performance Cameras & Camcorders Designed in collaboration with leading-edge manufacturers, this new CFast™ 2.0 memory card delivers the high performance of the broadcast, cinema and photography industries demand today. Write Speeds of up to 450MB/s for 128GB The SanDisk Extreme PRO CFast 2.0 memory card with write speeds of up to 450MB/s(2933X) and data-transfer speeds of up to 525MB/s the 128GB memory card can keep up with the burst-mode shooting of professional-grade cameras and camcorders. It also saves you time when moving large image or video files from your camera to your computer. Write Speeds of up to 430MB/s for 64GB The SanDisk Extreme PRO CFast 2.0 memory card with write speeds of up to 430MB/s(1600X) and data-transfer speeds of up to 525MB/s (3500X), the 64GB memory card can keep up with the burst-mode shooting of professional-grade cameras and camcorders. It also saves you time when moving large image or video files from your camera to your computer. High Speeds for Full HD & cinema-quality 4K Video Resource-intensive Full HD and cinema-quality 4K video recording require high write speeds. The SanDisk Extreme PRO CFast 2.0 card offers the speed required for flawless high-resolution video. This camera card is compatible with the new generation of high-performance cameras and camcorders based on CFast 2.0 technology. Tested Under Extreme Conditions This memory card can operate in temperatures ranging from -4ºF to 158ºF (-20ºC to 70ºC).