MultiMediaCard is a memory card standard used for solid-state storage, originally introduced in 1997 by SanDisk, Siemens, and Nokia. Designed as a compact, low-pin-count, postage‑stamp‑sized card alte
32 MB MMCplus card
Undersides of an MMC (left) and SD card (right) showing the differences between the two formats
Top of four types of MMC cards (clockwise from left): MMC, RS-MMC, MMCplus, MMCmobile, metal extender
Bottom of the same four cards
CompactFlash is a flash memory mass storage device used mainly in portable electronic devices. The format was specified and the devices were first manufactured by SanDisk in 1994.
A 16-GB CompactFlash card installed in a 2.5" IDE port with adapter
1 GB CF card in a Nikon D200 DSLR camera
CompactFlash to SATA adapter with a card inserted
SanDisk 32 GB CF card supporting VPG20 and UDMA7