Sony SF-M Series UHS-II SDXC Memory Card, V60 (256 GB / 512 GB)

The SF-M series is Sony's high-grade UHS-II SD card for cameras that shoot 4K video and fast stills bursts. Read speed reaches 277 MB/s for quick offloads and write speed 150 MB/s, enough for UHS Speed Class 3 and the V60 video class that guarantees a sustained minimum for high-resolution recording. On UHS-I hosts it runs at 95/90 MB/s.

The card is IP57 rated against dust and water, resists UV and drops of about 4.9 feet, and is backed by Sony's downloadable File Rescue recovery software and SD Scan Utility for monitoring card health. Capacities here are 256 GB and 512 GB.