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SanDisk Extreme 64GB CompactFlash memory card with black label and gold contacts

SanDisk

SanDisk Extreme 64GB Compact Flash CF Card CFXSB-064G-G46

SKU CH-M2DA-8K1H8 MPN CFXSB-064G-G46

A 64GB CompactFlash card with 120MB/s read and 85MB/s write speeds for DSLR burst shooting and Full HD video

  • Total capacity64 GB
  • Memory card formatFull Size SD
  • Speed classUDMA 7
  • Max read speedup to 120 MB/s
  • Write throughputup to 85 MB/s
  • Product typeCompact Flash (CF)

Capacity 64GB

Series Extreme (90MB/s +)

  • 64GB capacity stores thousands of RAW photos and Full HD video clips
  • Up to 120MB/s read speed accelerates file transfers to your workstation
  • Up to 85MB/s write speed captures rapid burst sequences without buffer delays
  • VPG-20 rating guarantees 20MB/s sustained recording for 1080p video
  • UDMA 7 interface delivers 567X performance for demanding DSLR workflows

SanDisk Extreme 64GB CompactFlash Card

The SanDisk Extreme CompactFlash card offers 64GB of storage for DSLR cameras and HD camcorders. It delivers read speeds up to 120MB/s and write speeds up to 85MB/s. The card carries a UDMA 7 rating and a VPG-20 video performance guarantee. It suits photographers who need reliable capture for fast action and Full HD video.

Sustained write performance and VPG-20 guarantee

The VPG-20 rating ensures a minimum sustained write speed of 20MB/s for continuous Full HD 1080p recording. Write speeds up to 85MB/s support burst-mode photography and RAW plus JPEG capture without buffering delays. Read speeds up to 120MB/s accelerate post-shoot file transfers to a computer. Performance remains consistent across extended shooting sessions rather than only in short bursts.

Check camera slot and workflow requirements

Verify that your camera accepts CompactFlash media before ordering, as this card will not fit SD or CFexpress slots. Confirm that your card reader or computer interface supports UDMA 7 to achieve the stated transfer rates. The 64GB capacity suits moderate shooting sessions; users recording long 1080p events or extensive RAW bursts may require larger cards.

How it compares

Measured against everything we stock in SD & MicroSD Memory Cards, at today’s prices. Recalculated every night.

Price $73.99
Pricier than about 63% of the 1,947 comparable items (median $46.99).
Total capacity 64 GB
Typical for this category: the median of 1,132 items is 64 GB.
Price per TB $1,156.09 per TB
Pricier than about 87% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineExtreme
Model nameCFXSB-064G-G46
Total capacity64 GB
Product typeCompact Flash (CF)
Performance
Speed classUDMA 7
Max read speedup to 120 MB/s
Write throughputup to 85 MB/s
Storage
Memory card formatFull Size SD

Other versions of this model

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Questions about this item

How much power does the 64GB SanDisk Extreme CompactFlash card draw when recording continuously at 85MB/s?

CompactFlash cards are passive storage devices with no active components, so they draw negligible power from the camera and generate no measurable heat during sustained write operations at 85MB/s.

Does my camera need a UDMA 7-compatible CompactFlash slot to use this card's 120MB/s read speed?

Yes, the card uses the UDMA 7 interface; a camera or reader that supports UDMA 7 is required to achieve the rated 120MB/s read and 85MB/s write speeds.

Will this CFXSB-064G-G46 card work in an older DSLR that only supports UDMA 6?

The card is backward compatible with UDMA 6 slots, but read and write speeds will be limited to the older interface's maximum throughput.

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