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Questions & Answers

FAQ

What is the maximum data transfer speed of the Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card?

The Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card offers a maximum read speed of up to 1900MB/s and a write speed of up to 1700MB/s.

What types of video can the Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card capture?

This memory card is designed to efficiently capture RAW 8K, 6K, 4K, and beyond video, meeting the VPG400 specification for professional-quality video.

Is the Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card durable?

Yes, these memory cards are built to withstand harsh conditions. They are shock and vibration-proof, and resistant to extreme temperatures.

Is the Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card compatible with all cameras?

The Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card is compatible with a wide range of cameras from Canon, Nikon, Panasonic, DJI, Fujifilm, and RED. It's also backwards compatible with select XQD cameras.

How does the Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card improve workflow?

Thanks to its industry-leading read transfer speed, this memory card allows you to quickly power through post-production, dramatically accelerating your workflow from start to finish.

Shopper : Why Did You Choose This?CHRIS D : Upgrading to a Z9. Need the speed, need the space for Raw primary pics.SANDRA M : Need fast write speeds to shoot the upcoming eclipse.VLADIMIR C : Fast speeds 1900MB/s read, 1700MB/s write and min sustained write speed of 1600MB/s to capture smooth RAW 8K, 6K, 4KSHRAVAN S : Fastest, most reliable card for Canon R5 burst shooting for wildlife.ALVARO O : I have Lexar memory cards and I believe that they are the best.SUSAN E : Looks like good quality and value.

Reviews about this item

Review Summary

2025-12-09T07:37:53

Rated 5 out of 5

Nice fast cards

Very good and able to keep up with video

Douglas R.

2023-08-04T16:49:04

Rated 5 out of 5

Large Storage Options For the Canon EOS R3

Great storage for my Canon R3 Camera. Reliable, fast and plenty of space.

Mo R.

2023-05-09T08:33:46

Rated 5 out of 5

Really fast, not just hype

Seems very fast I can almost shoot continuous 20fps full raw on the Z9 and the buffer only just slows down when it does hit the limit. And just a quick lift and its fully cleared in less than a second. Most impressive and it stays fairly cool. Wont know about longevity until I use it for a year or so but looks really good so far.

Gerald F.

2022-10-05T10:07:01

Rated 5 out of 5

So far so good

It's a memory card from a reputable manufacturer. According to reviews, at the time of purchase, it has the highest burst rate. I got it to go with a new Canon EOS R5. So far no complaints.

Timothy H.

2022-08-21T08:24:44

Rated 5 out of 5

Great card

Writes fast reads fast.

Timothy A.

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Lexar Diamond Professional Specifications

  • Capacity

    256GB

  • Form Factor

    CFexpress Type B

  • Interface

    PCIe Gen3x2

  • Min sustained write speed

    1600MB/s

  • Performance

    Read Speed:1900MB/s
    Write Speed:1700MB/s

  • Operating Temperature

    14 to 158 Degree F (10 to 70 Degree C)

  • Storage Temperature

    -13 to 185 Degree F (-25 to 85 Degree C)

  • Dimension (L x W x H)

    Single Memory Card: 1.16 x 1.51 x 0.14" (29.60 x 38.50 x 3.80mm)

  • Weight

    Single Memory Card: 0.25 oz (7.65g)

  • UPC Code

    843367129393

2 Accessories for Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card, 2-Pack

  • All Accessories (2)
  • Bags & Cases (2)

About Lexar Diamond Professional

FEATURED REVIEWS

Really fast, not just hype

By Gerald F.

Seems very fast I can almost shoot continuous 20fps full raw on the Z9 and the buffer only just slows down when it does hit the limit. And just a quick lift and its fully cleared in less than a second. Most impressive and it stays fairly cool. Wont know about longevity until I use it for a year or so but looks really good so far.

Nice fast cards

By Douglas R.

Very good and able to keep up with video

Where professional videography and high-resolution photography meet, the Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card, 2-Pack stands as a beacon of unmatched performance. This high-quality, reliable memory card set is specifically designed to cater to the rigorous demands of professional filmmakers, content creators, and photographers.

Experience the power of lightning-fast data transfer speeds, with read speeds reaching up to 1900MB/s and write speeds of up to 1700MB/s. This fast, durable memory card set ensures smooth and efficient capture of RAW 8K, 6K, 4K, and beyond, providing sustained performance that meets the VPG400 specification for professional-quality video.

The Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card is not just about speed; it's about efficiency too. Its industry-leading read transfer speed allows you to power through post-production, dramatically accelerating your workflow from start to finish. This is particularly beneficial for professionals working with large, high-resolution files.

Featuring PCIe Gen 3x2 and NVMe high-speed protocols, this professional-grade memory card set effortlessly captures the highest quality RAW, ProRes, and 8K video. It's also backwards compatible with select XQD cameras, offering next-generation performance for existing devices.

Built to withstand even the harshest of conditions, these memory cards are shock and vibration-proof, and resistant to extreme temperatures, making them a reliable choice for adventurous shoots. Each card undergoes rigorous testing in Lexar Quality Labs to ensure performance, quality, compatibility, and reliability.

The Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card, 2-Pack is compatible with a wide range of cameras from Canon, Nikon, Panasonic, DJI, Fujifilm, and RED, making it a versatile addition to any professional's toolkit. Whether you're capturing the raw beauty of nature or shooting a high-paced action scene, trust in the Lexar Diamond Series to deliver exceptional results every time.

Lexar Diamond Professional Features

  • Superior performance
  • Smooth 8K Video
  • Backwards Compatibility
  • VPG 400 video class

Key Features

  • High-quality, professional-grade 256GB CFexpress Type-B memory cards
  • Lightning-fast read speeds up to 1900MB/s and write speeds up to 1700MB/s
  • Designed for smooth capture of RAW 8K, 6K, 4K, and beyond video
  • Backwards compatible with select XQD cameras for next-generation performance
  • Durable construction, shock and vibration-proof, and resistant to extreme temperatures
  • Rigorously tested in Lexar Quality Labs for performance, quality, and reliability

What's in the box:

  • 2x Lexar Diamond Series Professional 256GB CFexpress Type-B Memory Card
  • Lexar Lifetime Limited Warranty