Reduced-Size Multimedia Memory Cards
MMC cards also come in a smaller form factor, of about half the size: 24 mm × 16 mm × 1.5 mm. This form factor is known as Reduced-Size Multimedia Card, or RS-MMC, and was introduced in 2004. RS-MMC cards are simply smaller MMC cards; by using a simple mechanical adapter to elongate the card, an RS-MMC card can be used in any MMC (or SD) slot. Reduced-Size MMC (RS-MMC) cards are currently available in sizes up to and including 1 GB.
Newer RS-MMC cards support a lower voltage (1.8 V instead of 3 V) mode to reduce battery demand, and these lower-voltage RS-MMC cards, known as Dual Voltage Reduced Size MMC, and can be marketed as MMCmobile when they meet the MMCmobile card standards. These low-voltage cards are backwards compatible with RS-MMC devices. The dual voltage cards, and the MMCmobile are part of the MMC 4.x standards.
MMC standard 4.x (4.0, 4.1, etc.) was released in 2005. This new standard involves the higher performance MMC4 (with the same basic MMC form factor but more pins) called MMCplus, marketed as MMCmobile. Also in the works is secureMMC, which will feature encryption features similar to Secure Digital (SD) or MagicGate Memory Sticks (MS).OpticsPlanet, Inc offers a full line of original Reduced-Size Multimedia Memory Cards with full manufacturer's warranty and Free UPS Ground shipping on orders over $29.95!
