Silicon Power Elite 64GB MicroSDXC Class 10 UHS-1 Memory Card Speed upto 40MB/s with SD Adapter (SP064GBSTXBU1V10E1) Read speeds up to 40 MB/s for quick file transfer from card to computer UHS Speed Class 1 and Class 10 for Full HD video recording Waterproof, temperature proof, magnet proof, and X-ray proof Includes SD adapter for compatibility with devices with an SDHC or SDXC slot