sleek, slim, small and ultra portable
MultiMediaCards (MMCs) are small, removable memory cards used increasingly in mobile phones and digital cameras for storing digital music, games, address books and photos, as well as for enabling a myriad of applications to come together and share digital media including content protected by digital rights management (DRM).

MMC Plus & MMC Mobile
MMCplus™ and MMCmobile™ Cards, based on the latest MMC System Specification Version 4.0, are the most advanced memory cards available today, offering the highest transfer speeds (up to 52MB/sec, or 416 Mbits/sec) , and the greatest flexibility, including support for dual-voltage operation (1.8 and 3/3.3V), and multiple bus widths (x1, x4 and x8 bit).While the new cards have 13 pins to accommodate the additional features, they are backwards compatible with previous version MMCs (7-pins), thus bridging the mobile storage applications of yesterday, today and tomorrow.

How do MultiMediaCards differ from SD cards and other memory cards?
MultiMediaCards and SD cards are based on separate but related industry standards. They are the same size, except that MultiMediaCards are thinner. Similarities in the standards allow MultiMediaCards to be used in electronic devices with expansion slots made for SD cards. However, SD cards cannot be used on devices with slots made specifically for MultiMediaCards. MultiMediaCards are not compatible with other memory cards such as Memory Stick and CompactFlash, since they are based on unrelated standards.

What are Dual-Voltage RS-MMC (or DV RS-MMC)?
This refers to reduced-size MMCs that support dual-voltage (3V and 1.8V) operation. MMCmobile Cards in the reduced-size card form factor are required to support dual voltage operation.

What's the difference between MMC/RS-MMC and MMCplus / MMCmobile?
MMCplus and MMCmobile Cards are the brand names endorsed by the MMCA for full-size and reduced-sized MMCs that meet specific features and functionality described in the MMC System Specification from version 4.1 onward. MMC/RS-MMC cards are generic names used for previous generation cards. Manufacturers may also choose to use the generic names for spec. ver. 4.1 cards at their discretion.

What are Dual-Voltage RS-MMC (or DV RS-MMC)?
This refers to reduced-size MMCs that support dual-voltage (3V and 1.8V) operation. MMCmobile Cards in the reduced-size card form factor are required to support dual voltage operation.

Can I use MultiMediaCards in my camera, PDA, cellular phone?
Yes, you can use MultiMediaCards in your digital camera, PDA, car radio or cellular phone if it has a memory expansion slot designed for MultiMediaCards or SD cards.