Western Digital Corporation - SDCFSP-128G-G46B

For New-Generation, High Performance Cameras and 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 440MB/s for 128GB
The SanDisk Extreme PRO CFast 2.0 memory card is more than twice as fast as today's fastest cards. With write speeds of up to 440MB/s, (2933X) and data-transfer speeds of up to 515MB/s(3433X), 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 240MB/s for 64GB
The SanDisk Extreme PRO CFast 2.0 memory card is more than twice as fast as today's fastest cards. With write speeds of up to 240MB/s (1600X) and data-transfer speeds of up to 515MB/s(3433X), 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 and cinema-quality 4K Video Recording (4096x2160)
Resource-intensive Full HD and cinema-quality 4K video recording require high write speeds. The SanDisk Extreme PRO CFast 2.0 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 23 to 158 degrees Fahrenheit.