 "SanDisk 64GB Class 4 SDXC Flash Memory Card- SDSDB-064G-B35 (Label May Change)" "Accessories | Ultimate Camera Shop"
"64GB Sandisk SDXC 9-pin Class 4 min 15 MB/s Read and 4 MB/s Write speeds 2.7V to 3.3V voltage support 24mm x 32mm x 2.1mm SDHC Secure Digital High Capacity Card for digital cameras, video cameras, media players, and other flash devices" 
 "Transcend 64GB SDXC Class 10 Flash Memory Card Up to 30MB/s (TS64GSDXC10E)"@en-US "Memory Cards | Laptops Outlet Direct"@en-US
"Featuring 64GB of storage space with the exFAT file system that supports files larger than 4GB, Transcendâ€™s Ultimate SDXC Class 10 cards are the ideal complement to todayâ€™s high-end SDXC-compatible DSLR cameras and HD camcorders. Thanks to its unprecedented amount of storage capacity, the SDXC cards enable extended HD video recording time as well as high-resolution digital photography. Fully Class 10 compliant, Transcend Ultimate SDXC cards boast read speeds up to 25 MB/s. This exceptional data transfer performance not only prevents lag when recording Full HD videos, but also enables high-speed consecutive shooting at fast-motion events. As more and more consumer electronic products are expected to support SDXC in the near future, widespread adoption of SDXC is just around the corner!"@en-US 