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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 ?
A compact Flash card slot provides an interface for local storage or for a wireless LAN card.
The Ridata Compact Flash Card family, including 600X MLC, 300X SLC, and 150X SLC with data lock write protection switch, is available through selected retailers, Ridata distributors, and at various online outlets.
Tenders are invited for Compact Flash Card For M/S Laxveen Make Speed Recorder Spec- Model No.
Also included with the product is the Navionics(R) Silver US Charts compact flash card which contains complete cartography for the continental United States, including the Great Lakes.
Tenders are invited for Supply of spares for control room data storage,ddr 3 (1333) 2 gb ram, ethernet card, compact flash card 2 GB
Each unit ships with a carrying case, a neck strap, a compact flash card, 2 AA NiMH batteries & charger, and an external power supply.
The write speed of a Compact Flash card, along with the speed of the camera itself, determines how quickly photos can be stored on the Compact Flash card.
Generators can also be cloned or upgraded using a Compact Flash card.
It supports download and subscription music services, photo transfer directly from a Compact Flash card or up to 17 variations of media through our optional Compact Flash Adapter.
Optional 512MB compact flash card provides ample mass memory storage for waveform captures, which can be easily emailed as attachments, and other event data.
Operators can move digital plan data easily to and from the machine using a 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.

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