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SanDisk Extreme PRO CFexpress 4.0 Type B 256GB memory card

SanDisk

SanDisk Extreme PRO CFexpress 4.0 Type B 256GB memory card

SKU CH-HXPN-DYDGW

CFexpress 4.0 Type B card with 256 GB capacity, up to 3700 MB/s read and 3500 MB/s write speeds, and VPG400 sustained write performance

  • CFexpress 4.0 Type B form factor enables broad device compatibility
  • Up to 3700 MB/s read speed accelerates data offload workflows
  • Up to 3500 MB/s write speed supports 12K video capture
  • VPG400 rating guarantees minimum 400 MB/s sustained write for 256GB capacity
  • SmartIdle technology reduces heat during extended recording sessions

CFexpress 4.0 Type B card for high-resolution

This SanDisk Extreme PRO card uses the CFexpress 4.0 Type B form factor and a PCIe Gen4 interface to deliver read speeds up to 3700 MB/s and write speeds up to 3500 MB/s. The 256 GB capacity supports extended shooting sessions for 4K, 6K, 8K and 12K video workflows. It is built for professionals who need reliable, high-throughput media in compatible cameras and recorders.

Thermals managed by SmartIdle low-power mode

SmartIdle technology helps prevent overheating by moving the card into a low-power state whenever the host device allows, reducing thermal load during long recording sessions. The design draws power only when active, keeping sustained performance stable without adding noise or requiring active cooling. This approach supports consistent write speeds for demanding video capture.

VPG400 rating and rugged solid-state build

The card carries a VPG400 video performance guarantee, certifying a minimum sustained write speed of 400 MB/s for the 128 GB to 400 GB capacity range. Solid-state construction with no moving parts resists shock, vibration and temperature extremes encountered in field use. The Type B connector ensures a secure, keyed fit in CFexpress 4.0 slots for dependable daily operation.

Highlights

  • CFexpress 4.0 Type B form factor enables broad device compatibility
  • Up to 3700 MB/s read speed accelerates data offload workflows
  • Up to 3500 MB/s write speed supports 12K video capture
  • VPG400 rating guarantees minimum 400 MB/s sustained write for 256GB capacity
  • SmartIdle technology reduces heat during extended recording sessions

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the CFexpress 4.0 Type B card in my camera, and what step is often missed?

Insert the card with the label facing the correct direction until it clicks into the CFexpress Type B slot; the step often missed is formatting the card in-camera before first use to ensure the file system matches the camera's requirements.

What maintenance or replacement will the 256GB card need over time?

No scheduled maintenance is required; replace the card if write errors appear, capacity drops, or after heavy use in 8K/12K workflows, as NAND endurance varies with sustained 3500 MB/s write loads.

What limit appears first during sustained 8K recording on this 256GB card?

The VPG400 rating guarantees a minimum sustained write of 400 MB/s; the 256GB capacity will fill before the 3500 MB/s peak write speed becomes the bottleneck.

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