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SanDisk Extreme PRO CFexpress 4.0 Type B Memory Card - 400GB (Up to 3700MB/s)
The SanDisk Extreme PRO CFexpress 4.0 Type B card is built for professional photographers and filmmakers who need to record 4K; 6K; 8K; and even 12K footage without hitting a storage bottleneck. Its PCIe Gen 4 interface reaches sequential reads up to...
PRODUCT DETAILS
Everything you need to know.
The SanDisk Extreme PRO CFexpress 4.0 Type B card is built for professional photographers and filmmakers who need to record 4K; 6K; 8K; and even 12K footage without hitting a storage bottleneck. Its PCIe Gen 4 interface reaches sequential reads up to 3700MB/s for fast card-to-computer offloads; and the 400GB model holds sustained writes up to 900MB/s for steady high-bitrate capture. It pairs with CFexpress Type B cinema and mirrorless cameras and a CFexpress 4.0 reader for the quickest end-to-end workflow.
Overview
A professional-grade CFexpress 4.0 Type B memory card (400GB) delivering PCIe Gen 4 performance for demanding video and high-speed burst photography; with SmartIdle thermal management and rugged; field-ready durability.
Features
- PCIe Gen 4 speed - sequential reads up to 3700MB/s and writes up to 3500MB/s.
- Sustained write up to 900MB/s for dropped-frame-free recording.
- High-resolution capture - 4K; 6K; 8K and 12K video.
- SmartIdle reduces power draw and heat during idle periods.
- Built tough - withstands drops up to 5m and bends up to 70N.
- Includes RescuePRO Deluxe recovery software download and a limited lifetime warranty.
Specifications
| Feature | Specification |
|---|---|
| Capacity | 400GB |
| Form factor | CFexpress 4.0 Type B (PCIe Gen 4) |
| Sequential read | Up to 3700MB/s |
| Sequential write | Up to 3500MB/s |
| Sustained write | Up to 900MB/s |
| Video Performance | VPG400/VPG800 (capacity-dependent) |
| Dimensions | 38.56 x 29.67 x 3.75 mm |
| Weight | 9.5 g |
| Durability | 5m drop; 70N bend |
FAQ
Which cameras and devices is it compatible with? Any camera or reader with a CFexpress Type B slot; including many cinema and mirrorless bodies; it is also backward-compatible with select XQD cameras updated to support CFexpress.
What is included? The CFexpress 4.0 Type B card; a free RescuePRO Deluxe data-recovery software download; and a limited lifetime warranty. A card reader is not included.
How does the 400GB compare to other capacities? Sequential read and write are the same across the line (up to 3700/3500MB/s); capacities differ in sustained write - this 400GB model sustains up to 900MB/s; suited to high-bitrate clips and bursts.
Can it handle 8K and 12K video? Yes - it is rated for 4K; 6K; 8K and 12K capture.