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
EVO Plus microSDXC Memory Card 64GB Memory & Storage - MB-MC64HA/AM | Samsung US
Amazon.com: Lexar High-Performance 800x 64GB (2-Pack) SDXC UHS-I Memory Cards, C10, U3, V30, Full-HD & 4K Video, Up to 120MB/s Read, for Point-and-Shoot Cameras, Mid-Range DSLR, HD Camcorder (LSD0800064G-B2NNU) : Electronics
Sandisk 64GB NEW Ultra MicroSD SDXC Card UHS-I Class 10 A1 Speed up to 140MB/s | eBay
Best Buy: Samsung Pro+ 64GB microSDXC UHS-I Memory Card MB-MD64GA/AM