SD Memory Cards developed by Toshiba Corp. will extend both the ultra-small and the ultra high-capacity segments of the company's product lineup. Toshiba already launched micro SD Memory Cards and will follow up in September with the introduction of SDHC Memory Cards.
The microSD Memory Card is claimed to be the smallest memory card; it's one-quarter the size of the miniSD card. It complies with the SD Memory Card standard and can be slipped into an adapter for use in products with slots for standard SD cards. The microSD cards will come in 256MB, 512MB, and 1GB capacities.
SDHC meets the new SD Memory Card Ver2.00 for cards with a capacity of over 2GB, and will boost memory capacity to 32GB in the near future. It also complies with Class 4 of the SD Speed Class, a newly defined standard for data-processing speed, and supports a maximum write speed of 6MB/s. As a result, SDHC Memory Cards are optimised for high capacity. Applications include digital video and continuous shooting mode for high-end digital still cameras. Toshiba is expected to unveil a 4GB SDHC Memory Card.