 "Kingston Digital 128GB SDXC UHS-I Speed Class 3 90MB/s Read 80MB/s Write Flash Memory Card (SDA3/128GB)" "Camera & Photo Accessories - Page 1191 | All Tech Toys"
"Move to faster performance with Kingston's SDHC/SDXC UHS-I U3 Flashcard. With speeds of 90MB/s read and 80MB/s write, it reads up to 9x faster and writes up to 8x faster than standard Class 10 SD cards. It meets the SD Association's latest specification release, UHS-I U3 (Ultra High-Speed Bus, Speed Class 3), which guarantees performance of at least 30MB/s and enough bandwidth to record and playback 4K2K video without interruption. Users can capture cinema-quality Full HD (1080p), Ultra HD (2160p),3D and 4K2K videos on high-performance cameras such as Digital Single Lens Reflex (D-SLR), Digital Single Lens Mirror less (D-SLM), camcorders and video cameras. It's ideal for television recordings as well as live broadcasts, plus it lets you edit files faster and provides faster upload times, especially when using USB 3.0 card readers. Its higher sustained write speeds ensure video integrity by reducing stutter and allow photographers to shoot in continuous burst mode. (Water submersion up to 30 min depth to 1m, temperatures -25C to 85C, 0.1 Gy of X-ray radiation both sides of card)." 
 "Transcend 64GB SDXC Class 10 Flash Memory Card Up to 30MB/s (TS64GSDXC10E)" "Accessories | Ultimate Camera Shop"
"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!" 