Lexar Professional DIAMOND CFexpress 4.0 Type B Card
The Lexar Professional DIAMOND CFexpress 4.0 Type B is engineered for professional videographers, photographers, and content creators who demand extreme performance. With blazing-fast 3700MB/s read speeds and sustained 3200MB/s write performance, this CFexpress 4.0 memory card eliminates bottlenecks in demanding workflows. Whether you're capturing 8K RAW video, high-speed burst photography, or real-time 4K streaming, the DIAMOND delivers the reliability and speed professionals trust. The VPG400 rating ensures consistent, uninterrupted recording even during intensive sessions, while the robust build quality and limited lifetime warranty provide peace of mind for mission-critical projects.
Key Features
- Ultra-fast 3700MB/s read and 3400MB/s write speeds for seamless 4K and 8K workflows
-
PCIe 4.0 interface with CFexpress 4.0 Type B compatibility for next-generation cameras
-
VPG400 rated for guaranteed minimum sustained write performance during video capture
- Available in capacities up to 1TB for extended shooting sessions
- Professional-grade durability with limited lifetime warranty protection
- Optimized for high-bitrate video, RAW photography, and real-time data transfer
- Backward compatible with CFexpress 3.0 devices
Technical Specifications
| Specification |
Details |
| Manufacturer |
Lexar |
| Part Number |
LCXEXDM001T-RNENG |
| Product Type |
CFexpress 4.0 Type B Memory Card |
| Capacity |
1TB |
| Read Speed |
Up to 3700MB/s |
| Write Speed |
Up to 3400MB/s |
| Sustained Write Speed |
3200MB/s (VPG400) |
| Interface |
PCIe 4.0 |
| Card Format |
CFexpress Type B |
| Video Rating |
VPG400 (Video Performance Guarantee) |
| Warranty |
Limited Lifetime |
Frequently Asked Questions
What is the fastest CFexpress 4.0 Type B card for professional video?
The Lexar Professional DIAMOND CFexpress 4.0 Type B delivers industry-leading 3700MB/s read speeds and 3200MB/s sustained write performance, making it ideal for 8K RAW video, high-bitrate 4K capture, and professional cinema workflows. The VPG400 rating guarantees consistent performance even during demanding sessions.
Is CFexpress 4.0 Type B compatible with older cameras?
Yes, the Lexar Professional DIAMOND CFexpress 4.0 Type B is backward compatible with CFexpress 3.0 devices. However, you'll achieve maximum performance (3700MB/s read, 3400MB/s write) only with cameras that support the CFexpress 4.0 standard and PCIe 4.0 interface.
What does VPG400 mean for video recording?
VPG400 (Video Performance Guarantee 400) certifies that this CFexpress memory card maintains a minimum sustained write speed of 400MB/s, ensuring uninterrupted recording during high-bitrate video capture without dropped frames or buffer issues.
How much 4K video can 1TB hold?
Storage capacity depends on bitrate and resolution. At 100Mbps (standard 4K), 1TB holds approximately 80+ hours. For high-bitrate 8K RAW or cinema formats (500Mbps+), expect 16-20 hours. The 3200MB/s sustained write speed ensures smooth, uninterrupted recording regardless of bitrate.
