Sony has announced their SF-G series SD cards that feature a claimed write speed of 299MB/ and a read speeds of 300MB/s. The company has achieved these speeds by improving the physical architecture and by using a new algorithm that “prevents loss of speed in data writing even after repeating burst shooting, and contributes to the camera’s speed of burst shooting.”

The new cards will be available in 32, 64 and 128 GB capacities from March.