Sandisk SDSDQUA-064G-A11 Professional Ultra 64GB MicroSDXC card is custom formatted for high speed, lossless recording! Includes Standard SD Adapter. (UHS-1 Class 10 Certified 30MB/sec) for GoPro HERO4 Black Add up to 128GB to your Android tablet or smartphone Read speeds up to 30MB/s for quick file transfer Class 10 performance for recording Full HD video Waterproof, temperature-proof, X-ray-proof, magnet-proof, shockproof SD adapter included for compatibility with digital cameras