A CompactFlash (CF) card is a removable flash-memory card that uses the CompactFlash standard and a Parallel ATA (PATA) interface. It is a specific legacy storage format—not a generic name for camera memory cards. If you are replacing one, confirm that your device explicitly supports CompactFlash before choosing a card.
What is a CompactFlash card?
CompactFlash is a removable-media standard used for flash storage. The CompactFlash Association (CFA) identifies its interface as Parallel ATA, or PATA, and classifies CompactFlash as a legacy specification in its current standards portfolio. The CFA’s card-types overview provides the official format distinctions.
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Here, “legacy” describes the standard’s status in the CFA portfolio. It does not tell you whether a particular card is currently available or whether a specific camera or other device accepts it.
How CompactFlash differs from other memory-card formats
CompactFlash, CFast, CFexpress, and XQD are separate standards. Their names may look related, but they are not interchangeable simply because they are all removable cards used with electronics.
#1 Best Overall
- Exceptional Shot to Shot Performance ; Read speeds of up to 120MB/s and write speeds of up to 85MB/s
- Professional Grade Video Capture ; VPG 20 ensures sustained data recording rate of 20MB/s for a smooth and unbroken video stream
- Durable Design ; Backed by rigorous stress, shock, and vibration testing and includes RTV silicone coating for protection against shock and vibration
- It operates in nearly any climate, with a functioning temperature range of -13 to 185 degrees Fahrenheit
| Format | Interface identified by the CFA |
|---|---|
| CompactFlash | Parallel ATA (PATA) |
| CFast | Serial ATA (SATA) |
| CFexpress | PCIe and NVMe |
| XQD | The CFA card-types overview lists it as a separate standard; the cited overview does not identify its interface. |
Because the standards differ, physical fit or a similar name is not enough to establish compatibility. Check the device’s label or manual for the exact supported card format.
How to check whether a CompactFlash card will work
- Identify the required format. Look in the device manual or on its label for “CompactFlash” or “CF.” If a listing only says “CF,” confirm that it means CompactFlash rather than another format.
- Check capacity limits. Compare the card’s capacity with the maximum supported by your device. The limit is model-specific and must come from the device documentation.
- Check any speed requirements. Use the camera or device manual and the card documentation to confirm that the card meets the stated requirements. The format name alone does not establish a speed limit or guarantee performance.
- Verify readers separately. If you need to transfer files using a card reader, confirm that the reader explicitly supports CompactFlash. Support for a different card format does not establish CF compatibility.
What to look for when buying one
For a compatible device, search for a “CompactFlash memory card” and verify the precise format, capacity, and any documented speed requirements against the host device. Do not substitute CFast or CFexpress unless the device documentation explicitly supports that format. Availability and camera compatibility depend on the specific product and device; the CFA’s overview does not establish current stock or model-level support.
Quick Recap
Best Value
- Uninterrupted High-Speed Workflow for Professional Creators: Engineered for demanding workflows, this professional CF card delivers read speeds up to 160MB/s and complies with the VPG standard for consistent video performance. It maintains sustained write speeds without slowdown, making it perfectly suited for capturing rapid burst shots and recording high-bitrate 4K video smoothly on your digital camera. Important: Verify your device’s compatibility with 128GB CF cards before ordering.
- Massive Capacity, Uninterrupted Capture: With a generous 128GB of storage, a single CF card is all you need for a full day of high-resolution photos and 4K video recording. Ideal for weddings, travel, and extended events—shoot freely without the disruption of changing cards mid-session.
- Built for the Wild. Trusted in the Elements: The reliable companion for every expedition. Combining waterproof, shockproof, and extreme temperature resilience, this CF card is built to withstand drops, downpours, freezing cold, and scorching heat—so you can focus on the shot, no matter the conditions.
- Seamless Cross-Platform Compatibility: Easily adapts to both Canon and Nikon ecosystems, enabling seamless switching between different professional gear.
- Reliability: We start with premium materials to build inherent reliability into every CF card, ensuring not just lasting durability but also a solid foundation for fast and stable data transfer every time.
Rank #4
- Records and captures cinema quality 4K and Full HD video(1)
- Increase workflow efficiency with transfer speed of up to 160MB/s (1067X) read speeds. Based on internal testing; performance may vary. MB=1,000,000 bytes. X = 150KB/sec.
- Industry leading shot speed performance of up to 150MB/s (1000X) write speeds. Based on internal testing; performance may vary. MB=1,000,000 bytes. X = 150KB/sec.
Rank #3
- Exceptional Shot to Shot Performance - Read speeds of up to 120MB/s and write speeds of up to 85MB/s
- Professional-Grade Video Capture - VPG-20 ensures sustained data recording rate of 20MB/s for a smooth and unbroken video stream
- Durable Design - Backed by rigorous stress, shock, and vibration testing and includes RTV silicone coating for protection against shock and vibration
Rank #2
- Built-in industry-standard compatibility
- Flash memory card for digital devicesff
- High Performance Controller for demanding applications
- CF memory card 2GB
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