MMC micro
The MMC micro card belongs to the Multimedia Cards (MMC). It is a miniaturized memory card with dimensions of only 12 mm x 18 mm for the MMC bus.
Standardized by the Multimedia Card Association ( MMCA), the MMC card can be operated with 3.3 V and 1.8 V, has storage capacities of up to 1 GB and data transfer rates of 26 MB/s.