updated 07:15 am EDT, Tue August 4, 2009
Toshiba SDXC Card
Toshiba this morning broke ground with its first storage card using the new SDXC standard. The 64GB card is both the largest SD card of any type but also offers performance closer to a CF card: it's the fastest SD card at write speeds of 35MB per second and read speeds of 60MB per second. Such speeds render the card fast enough for continuous still shooting with a DSLR or HD video capture, especially when offloading footage to a computer.
The company also has 16GB and 32GB SDHC cards available that it says should reach the same transfer speeds without needing to adapt to the new format and therefore should work in existing hardware.
Both types of storage are being announced particularly early. The SDXC card won't start sampling in test form until November, and the SDHC cards in December; actual retail availability won't start until the spring. Few if any cameras or readers support SDXC to date.