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Same build as SD but greater capacity and transfer speed, 4 GB to 32 GB (not compatible with older host devices). miniSDHC: 2008 32 GB [4] Same build as miniSD but greater capacity and transfer speed, 4 GB to 32 GB. 8 GB is largest in early-2011 (not compatible with older host devices). microSDHC: 2007 32 GB [4]
Excluding SDIO cards, royalties for SD card licenses are imposed for manufacture and sale of memory cards and host adapters (US$1,000/year plus membership at US$1,500/year) [citation needed] Early versions of the SD specification were available under a non-disclosure agreement (NDA) prohibiting development of open-source drivers.
An Eye-Fi card for sale in Tokyo, February 2010 A disassembled 16 GB Eye-Fi card 4 GB Eye-Fi card in a CompactFlash adapter. Eye-Fi was a company based in Mountain View, California, that produced SD memory cards with Wi-Fi capabilities.
It is known for its flash memory products, including memory cards and readers, USB flash drives, solid-state drives, and digital audio players. The company was founded in 1988 as SunDisk Corporation and renamed in 1995 as SanDisk Corporation; [ 2 ] then renamed to SanDisk LLC in 2016 when it was acquired by Western Digital . [ 3 ]
The basis for memory card technology is flash memory. [2] It was invented by Fujio Masuoka at Toshiba in 1980 [3] [4] and commercialized by Toshiba in 1987. [5] [6] The development of memory cards was driven in the 1980s by the need for an alternative to floppy disk drives that had lower power consumption, had less weight and occupied less ...