SD Card
A SD Card (Secure Digital Card) is an IC (Integrated Circuit) which is stored in a compact and rugged plastic enclosure. SD Cards are designed to store data and to enable the transfer of data between devices equipped with SD Card slots.
Current SD Card capacities range up to 1GB.
A SD Card is 32mm long, 24mm wide, and 2.1mm thick.
An even more compact format, the miniSD Card, is 20mm long, 21.5mm wide, and 1.4mm thick.
The theoretical transfer speed of a SD 1.0 Card is 12.5MB/s. SD 1.1 is expected to raise this to 50MB/s.
The SD Card standard was introduced by Toshiba, Matsushita Electric, and SanDisk in 1999.
SDIO
SDIO extends the SD Card standard to include 802.11b Wi-Fi cards, Bluetooth cards, modems, GPS receivers, TV tuners, cameras, digital recorders, scanners, fingerprint scanners and more.
For more information on SD Card, visit the SD Card Association.
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