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
SanDisk Extreme PLUS microSDXC Card - 64GB, Class 10, U3, UHS-I | Sweetwater