SanDisk today announced the availability of the 4-gigabyte (GB) Memory Stick Micro (M2) card. The 4GB M2 is compatible with Sony Ericsson’s latest generation of slim line, multimedia mobile handsets such as the Cyber-shot and Walkman series.

The M2 format was co-developed by SanDisk and Sony Corporation to meet the growing storage needs of highly compact, multimedia mobile phones. The M2 measures 0.59” long x 0.49” wide x 0.05” high, or 15mm x 12.5mm x 1.2mm, making it the second smallest flash memory media in the world, behind the microSD™ format, which SanDisk pioneered.

The SanDisk M2 card line is designed for use with mobile handsets that have an M2 slot as well as all Memory Stick PRO Duo™ slotted devices. When accompanied by the included Memory Stick PRO Duo adapter, M2 cards are fully backwards compatible with all digital cameras and hand-held game players such as the Sony PlayStation® Portable that have a Memory Stick PRO Duo slot.

The 4GB M2 card has a suggested retail price of $99.99. The new card is expected to be available worldwide this summer at many of the more than 210,000 consumer electronics stores and retail outlets where SanDisk products are sold.