Lexar® Professional CFexpress™ Type B Card DIAMOND Series

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Unmatched performance to capture smooth 8K RAW video

From field to post-production, experience the unmatched performance of the Lexar® Professional CFexpress™ Type B Card DIAMOND Series. Designed to meet the demands of professional filmmakers and content creators, this card unleashes blazing-fast speeds of up to 1900MB/s read and 1700MB/s write, and minimum sustained write speed of 1600MB/s1 to capture smooth RAW 4K, 6K, 8K and beyond video with sustained performance.

Dramatically accelerate your workflow

The blazing-fast performance of the Lexar® Professional CFexpress™ Type B Card DIAMOND Series allows you to capture and transfer content quickly and efficiently. And with an industry-leading read transfer speed up to 1900MB/s,1 you’ll quickly power through post-production and dramatically accelerate your workflow from start to finish.

Supports smooth 8K video performance

Featuring PCIe Gen 3×2, NVMe high-speed protocols, and a write speed of up to 1700MB/s,1 this card captures the highest quality RAW, ProRes, and 8K video with ease. It also meets the VPG400 specification for professional-quality video, meaning it’s guaranteed to capture video streams at a minimum guaranteed write speed of 400MB/s1 when used with compatible host devices and recording media.

Backwards-compatible with XQD® cameras

For added versatility, Lexar® Professional CFexpress™ Type B DIAMOND Series is backwards-compatible with select XQD® cameras,2 enabling existing devices with next-generation performance.

Capture adventure with ultimate durability

The Lexar® Professional CFexpress™ Type B Card DIAMOND Series is built with the rugged durability you need to capture even in the harshest of conditions. The cards are designed to be shock and vibration-proof, and resistant to extreme temperatures.* And, for added peace of mind, the card is backed by a Limited Lifetime Warranty.3

Rigorously Tested

All Lexar products undergo extensive testing in the Lexar Quality Labs, facilities with thousands of different cameras and digital devices to ensure performance, quality, compatibility, and reliability.

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  • Capacity
    128GB / 256GB / 512GB
  • Form Factor
    CFexpress Type B
  • Interface
    PCIe Gen3x2
  • Performance
    Up to 1900MB/s read, 1700MB/s write speeds1
  • Sustained Write Speed
    1600 MB/s1
  • Operating Temperature
    -10°C~70°C (14°F~158°F)
  • Storage Temperature
    -25°C~85°C (-13°F~185°F)
  • Dimension (LxWxH)
    29.60 mm x 38.50 mm x 3.80 mm / 1.16” x 1.51” x 0.14”
  • Weight
    7.65g / 0.016lbs
  • Warranty
    Lifetime limited warranty

1 Up to 1900MB/s read transfer, write speeds lower. Speeds based on internal testing. Actual speed may vary depending on host device.

2 Compatible with firmware-enabled CFexpress™ cameras.

3 Limited lifetime warranty is limited to 10 years from purchase in Germany and regions not recognizing lifetime warranty.

*Shock-resistant (1500G, duration 0.5ms, Half Sine Wave) and vibration-resistant (10~2000Hz, 1.5mm, 20G, 1 Oct/min, 30min/axis(X,Y,Z)). Based on internal testing. Actual performance may vary.
Temperature-proof: Withstands operating temperature range from 14ºF (-10ºC) or 158ºF (70ºC) and non-operating temperatures from -13ºF (-40ºC) or 185ºF (85ºC).
Warning: CFexpress™ Type B cards are only compatible with devices that support the CFexpress™ format. Highest transfer speed achieved only when used with a CFexpress™ Type B reader, indicated by a boxed USB logo on the product. Contact your device manufacturer for details.
Lexar is not liable for any loss of data or images.
Product appearance, performance, software offerings, and packaging may vary depending on ship date and available inventory.
Actual usable memory capacity may vary. 1GB equals 1 billion bytes.

Product Numbers

  • Capacity
    Part Number
  • 512GB
  • 256GB
  • 128GB
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