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SanDisk Extreme PRO CFexpress 4.0 Type B 4TB memory card, rectangular black card with gold contacts

SanDisk

SanDisk Extreme PRO CFexpress 4.0 Type B 4TB memory card

SKU CH-9AY4-QQ9XT

A 4 TB CFexpress 4.0 Type B card delivering up to 3700 MB/s read, 3500 MB/s write and 3100 MB/s sustained write for 4K to 12K video capture

  • Massive 4TB capacity stores extensive 8K and 12K projects
  • Read speeds up to 3700 MB/s accelerate offload workflows
  • Write speeds up to 3500 MB/s capture high-resolution video without lag
  • Sustained 3100 MB/s write prevents dropped frames on long takes
  • VPG1600 guarantee ensures consistent performance for professional recording

Professional storage capacity

The SanDisk Extreme PRO CFexpress 4.0 Type B card delivers 4TB of storage for professional photo and video projects. It supports capture of 4K, 6K, 8K and 12K footage without running out of space. The high capacity suits extended recording sessions and large creative workflows.

PCIe Gen4 interface and thermal design

The card uses a CFexpress 4.0 Type-B form factor with a PCIe Gen4 interface for compatible cameras and readers. SmartIdle technology shifts the card into a low-power mode during idle periods to help prevent overheating. This design supports sustained performance during demanding shoots.

Upgrading from slower or smaller cards

The jump is worthwhile when current media cannot sustain 3100 MB/s write speeds or lacks VPG1600 certification for flawless high-resolution video. It replaces cards that drop frames during long 8K or 12K recordings. Buyers who need only 128GB to 400GB capacities or VPG400 and VPG800 ratings will not benefit from this model.

Highlights

  • Massive 4TB capacity stores extensive 8K and 12K projects
  • Read speeds up to 3700 MB/s accelerate offload workflows
  • Write speeds up to 3500 MB/s capture high-resolution video without lag
  • Sustained 3100 MB/s write prevents dropped frames on long takes
  • VPG1600 guarantee ensures consistent performance for professional recording

Specifications

No published specifications for this item yet.

Questions about this item

What does the CFexpress 4.0 Type B interface with PCIe Gen4 cap read and write speeds at in practice?

The PCIe Gen4 interface enables up to 3700 MB/s read and 3500 MB/s write, with a minimum sustained write of 3100 MB/s on the 4TB model.

What slot size and form factor does this card need to fit?

It requires a CFexpress Type B slot; the card follows the Type B form factor and will not fit Type A or CompactFlash slots.

How is the card installed, and what step do people often miss?

Insert the card into the CFexpress Type B slot until it clicks; the step many miss is confirming the host device supports CFexpress 4.0 and VPG1600 to get the rated sustained write speed.

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