The SDA announced the microSD format at CTIA Wireless 2005 on March 14, 2005, and approval of the final microSD specification was announced on July 13, 2005. At launch, the microSD format was available in capacities of 32, 64, and 128 MB. SanDisk introduced a 2 GB microSD card in July of 2006, initially priced at 99 USD. Since then, prices for flash memory devices have fallen dramatically. The same 2 GB card as of April 2009 can be found for as little as 12 USD at department stores, and as of May 2009 for as little as 6 USD at online electronics stores. At present date Jan 2010 a 16 GB micro SD card class 2 comes for about $40 and a 4 GB class 2 micro SD card comes for about $8.
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