Best Buy: SanDisk Extreme PRO 64GB SDXC UHS-I Memory Card SDSDXXY-064G-ANCIN
Infinitive High Performace Mobile Micro SD Memory Card 64GB | Walgreens
SanDisk Ultra 64GB MicroSDXC Memory Card for Sale | ATN Corp
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