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 64GB Ultra microSDXC 140MB/s UHS-I U1 A1 Full HD C10 microSD 64G micro SD SDXC Flash Memory Card SDSQUAB-064G-GN6MN with OEM Lanyard - Newegg.com
Amazon.com: SanDisk Ultra 64GB Class 10 SDXC UHS-I Memory Card up to 80MB/s (SDSDUNC-064G-GN6IN) : Electronics