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A flash memory format introduced in 1994 by SanDisk. At approximately 36x43x3mm, CompactFlash (CF) cards are much larger than the SD Cards used in most cameras; however, they are still used in digital SLRs, and many photographers find the larger size harder to misplace. CompactFlash supports both 3.3v and 5v circuits and can hold up to 512GB as of 2015.

Data transfer speeds are designated as multiples of the first CD-ROM rate of 150 KB/sec. For example, 1,000x = 150 MB/sec. See CD-ROM drives.

CF Cards Use the PC Card Interface
Type I CF cards are 3.3mm thick and commonly used for camera storage. Type II cards are 5mm thick and were previously used for miniature hard drives, modems and Ethernet. On earlier laptops, adapters enabled the 50-pin Type II CF card to plug into the 68-pin PC Card slot. See Microdrive and PC Card.

CompactFlash Module
CompactFlash modules are still used in digital SLR cameras with capacities up to 512GB. For form factor comparisons, see memory card.
References in periodicals archive ?
Availability of Compact Flash cards in 64 MB, as well as 1, 2 and 4 GB.
A compact flash card slot works in conjunction with the alarm function to allow automatic recording onto a CF card when an alarm triggers it.
The plug-in CF card will also work with Linux and RTOS operating systems based devices with a Compact Flash card slot.
The unit records up to 16 hours of audio and video on a removable compact flash card.
A powerful dual memory processing system features a compact flash card for file storage and requires no PC or external control box for operation.
The USB memory device saves time because Mac and PC compatible images can be acquired without needing to download files to a floppy disk or ZIP drive, and it is more readily available than a compact flash card.
You can also compare different log graphs by reviewing files saved to Compact Flash card.
That's not much more than you get from a Secure Digital or Compact Flash card, but it's a step closer to the day when handsets become as much iPods as phones.
In addition, the projector supports Canon's new optional networking, including Multi Card Imager (LV-M101), Wired LAN Card (LV-WN01), Wireless LAN Card (LV-WN02) and Compact Flash Card (LV-WN03).
Simply turn up with your images on a CD or compact flash card or any of the other memory media types and Fuji will print them for you.
It works with the IQmark Digital Recorder, which uses a removable compact flash card for reliability and convenience.

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