MMC Plus Memory Guide

The MMCplus card was released along with the smaller MMCmobile in 2005 as a further development of the DV-MMC (Dual-Voltage MultiMediaCard). The DV-MMC quickly went out of production because these new cards offered many more features. The MMCplus measures 24mm x 32mm x 1.4mm, and can be used in a regular MMC slot, or an SD slot like the original MMC card. The highest capacity currently available is 4 GB. An 8 GB card has been announced but is not yet available for purchase. It has a maximum transfer speed of 52 Mbps, and a write speed of 15 Mbps.

Since the introduction of the Secure Digital card, the MMC format is far less popular. Few companies include an MMC slot in their device. But MMC and MMCplus cards can be used in most devices which support SD cards so long as the software or firmware on the device supports them. They can be used in most devices which use memory cards, such as cellular phones, digital audio players, digital cameras and PDAs. although very few companies include an MMC slot in their devices, it's compatibility with the SD slot keep it useful in modern devices.

The MMCplus is extremely durable. The cards are built with ample protection from water, dust, electro-static discharge, and extreme temperature. It can withstand temperatures from -40 to 85 Celsius, as well as stand up to a fair amount of physical abuse insuring your data does not get lost or destroyed - sometimes even if your device does. It's dual-voltage capabilities make it useful in battery powered devices. A lower operating voltage keeps the card from draining the devices battery. This feature essential in devices such as mobile phones.