Pretec Electronics has released 4GB SD card, what is claimed to be the largest capacity of SD card in the world. Pretec 4GB SD card is the newest addition of its high speed line of 133X SD card, from 256MB to 4GB, with access speed up to 20MB/s, and conformsto SD 1.1 specification. The card is constructed with 65 nano-meter 16Gb SLC NAND technology, which is 200%-500% faster than MLC NAND. Pretec 133X 4GB SD card is available for customer sampling with unit price of $699 each, mass production is scheduled by next month.

Pretec also announced the availability of 2GB MMC 4.x card (MMC Plus). With 8-bit data bus and 52MHz clock rate, MMC 4.x card can be 400% faster than today?s SD card commonly available in the market, or 200% faster than the latest SD 1.1 specification. Pretec 12GB CF card pricing is reduced from $9999 to $4999.

Both SD 1.1 or MMC 4.x cards are backward compatible with older digital cameras, mobile phones or other IA devices operating with SD 1.0 or MMC 3.x specifications.