Announced in January of this year, version 3.0 supports transfer speeds of up to 104MB/s on the SD interface. The SDXC specification will pick up where SDHC ends and can support up to 2TB in capacity. Toshiba expects their memory to be particularly useful in digital camcorders that require high bandwidth data communication. Digital SLR cameras will be able to shoot longer continuous bursts in the highest quality RAW format, and downloading a 2.4GB video will take only 70 seconds.
Although Toshiba has reserved the "world's first" title, sample shipments of its 64GB SDXC aren't coming until November. The Average Joe can expect to wait until next spring. No pricing has been disclosed.