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

SanDisk

SanDisk Extreme 64 GB CompactFlash memory card

SKU CH-31PP-EXNXV

A 64 GB CompactFlash card rated Class 10 with 120 MB/s read and 85 MB/s write speeds

  • Total capacity64 GB
  • Memory card formatCompactFlash
  • Speed classClass 10
  • Max read speed120 MB/s
  • Write throughput85 MB per second
  • Variant64 GB
  • 64 GB capacity stores more high-resolution images and video
  • Class 10 rating guarantees minimum 10 MB/s sustained write performance
  • 120 MB/s read speed transfers large files quickly to your computer
  • 85 MB/s write speed keeps up with continuous burst shooting
  • CompactFlash form factor fits professional DSLR and video cameras

SanDisk Extreme 64 GB CompactFlash

The SanDisk Extreme CompactFlash card delivers 64 GB of storage for professional cameras and industrial equipment that require the CompactFlash form factor. It targets photographers and videographers who need reliable media for high-resolution capture. The card operates as a new, factory-sealed unit.

Class 10 speed and 120 MB/s read

Rated at Class 10, the card guarantees a minimum sustained write speed of 10 MB/s for continuous recording. Maximum read throughput reaches 120 MB/s, allowing fast image transfer to a workstation. Write performance peaks at 85 MB/s, which the CompactFlash interface and host device must support to achieve.

64 GB capacity with 85 MB/s write headroom

The 64 GB capacity holds thousands of RAW files or hours of Full HD footage, giving ample headroom for extended shoots. Write speeds of 85 MB/s handle high-bitrate video and burst photography without buffering delays. Users shooting 4K video at very high bitrates or requiring larger volumes should evaluate higher-capacity options.

How it compares

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

Price $64.99
Pricier than about 59% 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 $1,015.47 per TB
Pricier than about 84% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineExtreme
Model nameSDCFXSB-064G-G46
Part numberSDCFXSB-064G-G46
Total capacity64 GB
Product typeCompactFlash
Performance
Speed classClass 10
Max read speed120 MB/s
Write throughput85 MB per second
Storage
Memory card formatCompactFlash
More details
Variant64 GB

Questions about this item

Should I choose the 64 GB Extreme or a different capacity for continuous RAW shooting?

The 64 GB Extreme delivers 120 MB/s read and 85 MB/s write with Class 10 rating, giving enough buffer clearance for extended RAW bursts on compatible cameras.

What does the 120 MB/s read speed mean when I offload images to my workstation?

In practice you can transfer a full 64 GB card in roughly nine minutes through a UDMA 7 reader, cutting ingest time versus slower cards.

Which CompactFlash interface does this card use and what throughput ceiling does it impose?

It uses the CompactFlash UDMA 7 interface, capping real-world throughput at the card's rated 120 MB/s read and 85 MB/s write.

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