SD Association vows breakthrough 300MBps SD card speeds

Following an announcement from Toshiba at IFA yesterday that it has developed SDHC memory cards based on the new UHS-1 standard, the SD Association today outlined its plans for its forthcoming SD 4.0 standard. The breakthrough means that SD 4.0 can support real-time HD video playback, whether from a media player or a camcorder. The new SD 4.0 standard is based on a dual-row pin memory design that achieves bus interface speeds of up to 300MBps, or nearly three times faster than UHS-1′s 105MBps.

Fully backwards compatible with any SD, SDHC and SDXC memory card capable device, the new high speed interface signals will be assigned on the second row of pins of certain SDXC and SDHC cards offering the new speed. Availability of cards featuring the new design standard is expected in early 2011.

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