In the CES (Consumer Electronics Show) held in Las Vegas in 2009, the capacity of a SD card is expected to have a breakthrough. Typical SD cards only support up to 2GB, and the SDHC capacity has a cap of 32GB.
The new SHXC stands for "Secure Digital Extended Capacity" capable of supporting a maximum capacity of 2TB (= 2,000GB (in 1024 scale not 1000 scale)).
According to the report of Dennis Hissink in CES 2009 website, "SDXC is a large-capacity card that can store more than 4,000 RAW images, which is the uncompressed mode professionals use, and 17,000 of the fine-mode most consumers use. That capacity, combined with the exFAT file system, increases movie recording time and reduces starting time to improve photo-capturing opportunities," said Shigeto Kanda, general manager at Canon. "Improvements in interface speed allow further increases in continuous shooting speed and higher resolution movie recordings. As a memory card well suited to small-sized user-friendly digital cameras, the SDXC flash memory specification will help consumers realize the full potential of our cameras."
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