It should be. The SD Association says they have designed a new, dual-row pin memory card that can go up to 300 megabytes per second, in bus interface speeds, for SDXC and SDHC devices and memory cards. It is fully backwards compatible, allowing equipped devices full use of any SD, SDHC and SDXC memory cards.
New high speed interface signals will be assigned on the second row of pins of select SDXC and SDHC memory cards offering the new speed. This option will be available in both full-size and micro form factors and does not change the physical size or shape of the cards. This design will be part of the forthcoming SD 4.0 specification, expected in early 2011.
â€œOur innovative dual-row pin design ultimately lets consumers using equipped products to manage the massive storage capacity found on SDXC memory cards at incredible speeds,â€ said Norm Frentz, chairman of the SD Association. â€œSD can now support high definition video from Hollywood movie studios, television broadcasts, or HD videos taken on your latest vacation.â€