SanDisk Extreme PRO 512GB 200mb/s UHS-I SDXC Memory Card

Key Features.   Performance, reliability, and uncompromising image and 4K UHD video1 quality Pro-level speed and memory to spare Ready to shoot 4K UHD video1 Pro performance for uncompromising results Great for shooting 4K UHD video1 Transfer speeds up to 200MB/s and read speeds up to 140MB/s