Toshiba Corporation has announced the latest enhancement to its extensive line-up of SD Memory cards: a 4-gigabyte (GB) Class 6 SDHC Card; a 4GB Class 4 miniSDHC Card; and a 2GB microSD Card.

The new SDHC and miniSDHC Cards will be available worldwide from March next year, and the microSD will be launched worldwide next April.

The SD High Capacity standard (version 2.00) takes card-based memory into the broadband era by defining three classes of high speed data write for cards with an enhanced capacity of 4GB and more. The market for these high performance memory cards will grow alongside increasing demand for digital equipment able to handle motion pictures and high resolution images without long delay times. Demand for miniSDHC Cards and microSD Cards will primarily come from mobile phones.

Toshiba's new 4GB Class 6 SDHC meets the ultra high speed Class 6 rating, and delivers a guaranteed sustained write speed of 6MB/s; Toshiba has measured sustained performance at a maximum of 20MB/s. The new 4GB SDHC Card extends the Company's line up of 4GB SDHC beyond the Class 4 card launched in September.