Amazon.com: SAMSUNG 8 GB microSD High Capacity (microSDHC) - Class 4-1 Card : Electronics
Amazon.com: 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 : Electronics