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SanDisk Extreme PRO CFexpress 4.0 Type B Lady Liberty Edition memory card

SanDisk

SanDisk Extreme PRO CFexpress 4.0 Type B Lady Liberty Edition memory card

SKU CH-TQXR-YY428

High-capacity CFexpress 4.0 Type B card delivering up to 3700 MB/s read and 3500 MB/s write speeds for 4K to 12K video capture

  • Up to 3700 MB/s read speeds accelerate file offloads
  • Up to 3500 MB/s write speeds handle 12K video capture
  • 3100 MB/s minimum sustained write keeps long recordings stable
  • VPG1600 on 1 TB to 4 TB cards guarantees cinema-grade frame integrity
  • SmartIdle technology reduces heat during extended shooting sessions

CFexpress 4.0 Type B card for high-resolution

The SanDisk Extreme PRO CFexpress 4.0 Type B Lady Liberty Edition is a memory card built for professional photo and video workflows. It targets creators who record 4K, 6K, 8K and 12K footage and need reliable storage for critical data. Capacities range from 128 GB up to 4 TB to match project scale. Buyers who need a smaller form factor such as Type A or an SD card cannot use this product.

PCIe Gen4 interface limits sustained throughput

The card uses a CFexpress 4.0 Type-B form factor with a PCIe Gen4 interface. Maximum read speed reaches 3700 MB/s and maximum write speed reaches 3500 MB/s. Minimum sustained write speed is 3100 MB/s on the 2 TB and 4 TB models. Video Performance Guarantee tiers are VPG1600 for 1 TB to 4 TB cards and VPG800 plus VPG400 for 128 GB to 400 GB cards. SmartIdle technology helps manage heat during long sessions. Cameras without a CFexpress Type B slot or PCIe Gen4 support will not achieve these speeds.

Minimum sustained write speed decides fitness

The single specification that determines whether this card fits a project is the minimum sustained write speed. The 2 TB and 4 TB models guarantee 3100 MB/s while smaller capacities carry VPG800 or VPG400 ratings. If a workflow demands a higher guaranteed floor than the chosen capacity provides, the card is not the right part.

Highlights

  • Up to 3700 MB/s read speeds accelerate file offloads
  • Up to 3500 MB/s write speeds handle 12K video capture
  • 3100 MB/s minimum sustained write keeps long recordings stable
  • VPG1600 on 1 TB to 4 TB cards guarantees cinema-grade frame integrity
  • SmartIdle technology reduces heat during extended shooting sessions

Specifications

No published specifications for this item yet.

Questions about this item

Which capacity should I choose for 8K video work?

The 2 TB and 4 TB models guarantee a minimum sustained write speed of 3100 MB/s, while 1 TB to 4 TB cards carry VPG1600 and smaller capacities VPG800 or VPG400.

What does the 3700 MB/s read speed mean when the card is in my camera?

It is the peak sequential read rate over the PCIe Gen4 link; real-world offload speeds will be lower and depend on your reader and host system.

How does the CFexpress 4.0 Type B interface limit performance?

The card uses a PCIe Gen4 x2 connection, so the 3700 MB/s read and 3500 MB/s write ceilings are set by that interface bandwidth.

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