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Lexar 128GB Professional DIAMOND CFexpress 4.0 Type B Memory Card

BH #LE128PCF4BD • MFR #LCXEXD4128G-RNENG
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Lexar 128GB Professional DIAMOND CFexpress 4.0 Type B Memory Card
Key Features
  • 128GB Storage Capacity
  • PCIe 4.0 Bus
  • Max Read Speed: 3700 MB/s
  • Max Write Speed: 3400 MB/s
Experience the CFexpress 4.0 advantage and capture 8K raw cinema-quality video with the 128GB Professional DIAMOND CFexpress 4.0 Type B Memory Card from Lexar, which delivers read speeds of up to 3700 MB/s, write speeds of up to 3400 MB/s, and sustained write speeds of 3200 MB/s, all of which help to expedite post-production. Additionally, thanks to its VPG-400 rating, write speeds are guaranteed not to drop below 400 MB/s. Also featured is 8-point protection against temperatures, vibration, wear-out, dust (IP5X), drops, shocks, compression, and bends. Protection is provided by a limited lifetime warranty and data recovery software.
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Lexar 128GB CFexpress Type B Overview

Experience the CFexpress 4.0 advantage and capture 8K raw cinema-quality video with the 128GB Professional DIAMOND CFexpress 4.0 Type B Memory Card from Lexar, which delivers read speeds of up to 3700 MB/s, write speeds of up to 3400 MB/s, and sustained write speeds of 3200 MB/s, all of which help to expedite post-production. Additionally, thanks to its VPG-400 rating, write speeds are guaranteed not to drop below 400 MB/s. Also featured is 8-point protection against temperatures, vibration, wear-out, dust (IP5X), drops, shocks, compression, and bends. Protection is provided by a limited lifetime warranty and data recovery software.

Superior Performance
PCIe 4.0 technology delivers max read speeds of 3700 MB/s, max write speeds of 3400 MB/s, and sustained write speeds of 3200 MB/s.
2x Faster Post-Production Workflow than CFexpress 2.0
Read speeds dramatically accelerate post-production and you can pair this card with the Lexar Professional Workflow CFexpress 4.0 Type B Card Reader to speed up your workflow to be twice as fast as CFexpress 2.0.
Capture Cinema-Quality Video
Blazing fast write speeds, temperature control technology, and a VPG-400 rating ensure the seamless capture of 8K raw video.
Enhanced Endurance, Reliability, and Performance
Leveraging pSLC technology, this card delivers a longer life span (up to 30,000 TBW), increased data reliability, lower power consumption, and the ability to store data for longer.
Durability Built-In
This CFexpress card is also designed to be temperature-proof, vibration-resistant, 12,000x wear-out resistant, dust-proof (IP5X), 16.4' drop-proof, shock-resistant, bend-resistant, and 7x more compression-resistant than SD cards.
Lexar Has You Covered
Lexar's Recovery Tool helps you recover accidentally deleted and formatted pictures or video files and a limited lifetime warranty provides extra peace of mind.
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.
UPC: 843367138760

Lexar 128GB CFexpress Type B Specs

Quantity
1
Card Type
CFexpress Type B
Storage Capacity
128 GB
Bus Type
PCI-Express 4.0
Read Speed
Maximum: 3700 MB/s
Write Speed
Maximum: 3400 MB/s
Sustained: 3200 MB/s
Minimum: 400 MB/s
Video Performance Guarantee
VPG- 400
Operating Conditions
10 to 161°F / -12 to 72°C
Storage Conditions
-13 to 185°F / -25 to 85°C
Certifications
CE, FCC, UKCA, VCCI, WEEE
Packaging Info
Package Weight
0.07 lb
Box Dimensions (LxWxH)
5.1 x 3.8 x 0.5"

Lexar 128GB CFexpress Type B Reviews

Good card

By Steven
Rated 5 out of 5
Date: 2026-06-02

Fast works great no issues

Every professional will love it

By K. Sargsyan
Rated 5 out of 5
Date: 2025-11-29

Just amazing. I love it

See any errors on this page?

Will this work with fuji xh2?

Will this work with fuji xh2?
Asked by: Devin
The Lexar 128GB Professional DIAMOND CFexpress 4.0 Type B Memory Card is compatible with the FUJIFILM X-H2 Mirrorless Camera.
Answered by: Rob K
Date published: 2025-10-21

Can this work with sony fx6?

Can this work with sony fx6?
Asked by: Adebiyi Mutiu
The Lexar 1TB Professional DIAMOND CFexpress 4.0 Type B Memory Card is not compatible with the Sony FX6 Full-Frame Cinema Camera. It uses a CFexpress Type A, not Type B, card.
Answered by: Elliot A
Date published: 2026-03-19

I want this as a removable OS drive. A 4 KiB ...

I want this as a removable OS drive. A 4 KiB block size is optimal. Does its NAND effectively have a 4 KiB page size?
Asked by: Kevin
The individual block size of the Lexar 1TB Professional DIAMOND CFexpress 4.0 Type B Memory Card has not been published by the manufacturer.
Answered by: Kenneth C
Date published: 2025-07-23

Max write vs sustained write vs minimum write ...

Max write vs sustained write vs minimum write speed? Nikon Z8
Asked by: Frank
The Lexar 256GB Professional DIAMOND CFexpress 4.0 Type B Memory Card is a very fast card. The manufacturer does not list the speed with specific cameras, and the Nikon Z8 card slot does not support the CFexpress 4.0 standard. Data is transferred in accordance with the CFexpress 2.0 standard, meaning it will be slower than what is listed on the card.
Answered by: Elliot A
Date published: 2025-10-24

Can I use this with a "classic" CF express 2.0 ...

Can I use this with a "classic" CF express 2.0 type B card reader, or do I need a 4.0 card reader?
Asked by: Thomas
Generally, USB4/Thunderbolt readers will support the PCIe 4.0 speeds, because Type B cards have two lanes, and that is equivalent to 4 lanes of PCIe 3.0 (32 gbps), which is more than what even USB 3.2 Gen 2x2 (20 gbps) can muster, but something Thunderbolt 4/USB4 can handle just fine.
Answered by: Kevin
Date published: 2025-09-16
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