MMC

The MultiMediaCard (MMC) is a flash memory memory card standard. Unveiled in 1997 by Siemens AG and SanDisk, it is based on Toshiba's NAND-based flash memory, and is therefore much smaller than earlier systems based on Intel NOR-based memory such as CompactFlash. MMC is about the size of a postage stamp: 24 mm x 32 mm x 1.4 mm. MMC originally used a 1-bit serial interface, but newer versions of the specification allow transfers of 4 or sometimes even 8 bits at a time. They have been more or less superseded by Secure Digital cards (SD card), but still see significant use because MMCs can be used in most devices which support SD cards.

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CF

CompactFlash (CF) is a mass storage device format used in portable electronic devices. For storage, CompactFlash typically uses flash memory in a standardized enclosure. The format was first specified and produced by SanDisk in 1994. The physical format is now used for a variety of devices. The Compact Flash storage medium was made popular for its use in digital cameras. In recent years it has been widely replaced by secure digital cards on the consumer end but is still preferred for D-SLR cameras for their superior capacity, size and reliability.

SD

Secure Digital (SD) is a flash (non-volatile) memory card format developed by Matsushita, SanDisk, and Toshiba for use in portable devices. Today it is widely used in digital cameras, handheld computers, PDAs, mobile phones, GPS receivers, and video game consoles. SD card capacities range from 8 MB to 2 GB and from 4 GB to 32 GB for SDHC cards as of 2008.

Memory Stick

Memory Stick is a removable flash memory card format, launched by Sony in October 1998 [1], and is also used in general to describe the whole family of Memory Sticks. In addition to the original Memory Stick, this family includes the Memory Stick PRO, a revision that allows greater maximum storage capacity and faster file transfer speeds; Memory Stick Duo, a small-form-factor version of the Memory Stick (including the PRO Duo); and the even smaller Memory Stick Micro (M2). In December 2006 Sony added the Memory Stick PRO-HG, a high speed variant of the PRO, to be used for high definition still and video cameras.

Memory Stick Pro

Memory Stick is a removable flash memory card format, launched by Sony in October 1998 [1], and is also used in general to describe the whole family of Memory Sticks. In addition to the original Memory Stick, this family includes the Memory Stick PRO, a revision that allows greater maximum storage capacity and faster file transfer speeds; Memory Stick Duo, a small-form-factor version of the Memory Stick (including the PRO Duo); and the even smaller Memory Stick Micro (M2). In December 2006 Sony added the Memory Stick PRO-HG, a high speed variant of the PRO, to be used for high definition still and video cameras.

Memory Stick Pro Duo

Compact size (31 mm x 20 mm x 1.6 mm), optional DRM, available up to 16 GB.

Memory Stick Duo

Compact size (31 mm x 20 mm x 1.6 mm), optional DRM, Memory up to 128 MB

microSDHC

microSD is a format for removable flash memory cards. The SD stands for Secure Digital. It is commonly used in cellular phones, but also in handheld GPS devices, portable media players, digital audio players, expandable USB flash memory drives, and for Nintendo DS flashcards, along with digital cameras.

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microSD

microSD is a format for removable flash memory cards. It is derived from SanDisk TransFlash and is used mainly in mobile telephones, but also in handheld GPS devices, portable audio players, video game consoles and expandable USB flash memory drives.
It is currently (2008) the smallest memory card available commercially. At 15mm × 11mm × 0.7mm (about the size of a fingernail), it is about a quarter the size of an SD card. There are adapters which allow a microSD card to be used in devices intended for SD, miniSD, or MemoryStick Duo cards. However, they are not universally compatible.

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Memory Stick Micro M2

Memory Stick is a removable flash memory card format, launched by Sony in October 1998 [1], and is also used in general to describe the whole family of Memory Sticks. In addition to the original Memory Stick, this family includes the Memory Stick PRO, a revision that allows greater maximum storage capacity and faster file transfer speeds; Memory Stick Duo, a small-form-factor version of the Memory Stick (including the PRO Duo); and the even smaller Memory Stick Micro (M2). In December 2006 Sony added the Memory Stick PRO-HG, a high speed variant of the PRO, to be used for high definition still and video cameras.

SDHC

The Secure Digital High Capacity (SDHC) format, defined in Version 2.0 of the SD specification, supports cards with capacities up to 32 GB. The SDHC trademark is licensed to ensure compatibility.

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SDXC

Auf der Consumer Electronics Show 2009 kündigte die SD Card Association den Nachfolger von SDHC an. Die Spezifikation der SDXC (SD eXtended Capacity) genannten Karten erlaubt eine Bruttogrösse bis 2 TB (2.048 GB). Die Einteilung in Leistungsklassen wird beibehalten und reicht nun bis 104 MB/s, geplant sind 300 MB/s. Als Dateisystem kommt häufig das für Flashspeicher optimierte exFAT von Microsoft zum Einsatz.

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MMCmobile

Einige neuere Geräte (meist Mobiltelefone) liefern nur noch eine Versorgungsspannung von 1,8 Volt, in diesem Fall ist eine Dual Voltage-Karte erforderlich (RS-MMC DV oder MMC mobile, ebenfalls bis 4096 MB erhältlich). Diese Karten können dann mit zwei verschiedenen Betriebsspannungen, nämlich 1,8 V oder 3 V betrieben werden.

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RS-MMC

Die sogenannte RS-MMC (Reduced Size MultiMedia Card) ist eine um die Hälfte verkleinerte Version der MMC, die insbesondere in Mobiltelefonen Verwendung fand. Über einen Adapter ist auch diese in normalen MMC-Geräten verwendbar. Die grössten RS-MMCs fassen derzeit (Juli 2007) 4096 MB (4 GB). Die Karte ist 24 mm × 18 mm × 1,4 mm gross und wird ebenfalls über 7 Pins angesteuert.

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MMCplus

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