SanDisk has introduced a new line of its SDHC cards, available in 4GB, 8GB and 16GB capacities. The SanDisk Extreme III 30MB/s Edition offers enhanced transfer speeds of up to 30MB per second (when placed in SanDisk’s ImageMate Multi-Card USB 2.0 Reader/Writer) and is optimized for use with the new Nikon D90.

Compatible cameras can record 39 images in continuous shooting mode at 4.5 frames per second with a file size of 6MB JPEG L Fine per image. The cards are capable of functioning in extreme temperatures, from -13° to 185° Fahrenheit.

SanDisk Extreme III SDHC 30MB/s Edition cards retail for $64 for the 4GB card, $109 for the 8GB card, and $179 for the 16GB card.

SanDisk has also just introduced the new 32GB SanDisk Extreme III CompactFlash card with read/write speeds of up to 30MB per second (200x) to hold more RAW images than lesser-capacity cards and store more than 80 minutes of HD video.

It retails for $399.