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Delkin Devices 1TB BLACK CFexpress Type B 4.0 Memory Card

BH #DECB4BV41T • MFR #DCB4BV41T
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Delkin Devices 1TB BLACK CFexpress Type B 4.0 Memory Card
Key Features
  • 1TB Storage Capacity
  • PCIe 4.0 Interface
  • Max Read Speed: 3630 MB/s
  • Max Write Speed: 3130 MB/s
Combining strength, reliability, and performance, the 1TB BLACK CFexpress Type B 4.0 Memory Card from Delkin Devices features a storage capacity of 1TB and is designed for professional photographers, videographers, and high-end hosts. It is well-suited for raw and continuous-burst photography as well as raw 8K, 6K, and 4K video at high bitrates and frame rates. Thanks to a PCIe 4.0 interface, you'll be able to achieve maximum read speeds of up to 3630 MB/s and maximum write speeds of up to 3130 MB/s. In addition, this card features sustained write speeds of 2040 MB/s and, thanks to the VPG-400 standard, write speeds are guaranteed not to drop below 400 MB/s.
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Delkin Devices 1TB CFexpress Type B Overview

Combining strength, reliability, and performance, the 1TB BLACK CFexpress Type B 4.0 Memory Card from Delkin Devices features a storage capacity of 1TB and is designed for professional photographers, videographers, and high-end hosts. It is well-suited for raw and continuous-burst photography as well as raw 8K, 6K, and 4K video at high bitrates and frame rates. Thanks to a PCIe 4.0 interface, you'll be able to achieve maximum read speeds of up to 3630 MB/s and maximum write speeds of up to 3130 MB/s. In addition, this card features sustained write speeds of 2040 MB/s and, thanks to the VPG-400 standard, write speeds are guaranteed not to drop below 400 MB/s.

To help facilitate card usage in almost any environment, as well as keeping your content safe, Delkin has built its BLACK Series with a rugged design that is resistant to water, shock, and temperature extremes. In order to further enhance reliability and functionality, the BLACK Series is serialized and protected by a limited lifetime warranty and a 48-hour replacement guarantee upon registration with Delkin.

Please note that this card is not compatible with CompactFlash, CFast 2.0, or CFexpress Type A hosts.

Technologically Advanced CFexpress Recording Speeds
Rated Video Performance Guarantee 400 (VPG-400), the BLACK CFexpress Type B card boasts recording speeds up to 3130 MB/s for flawless BLACK-quality video capture, including 8K, 6K, and 4K at high frame rates and bitrates. Minimum sustained write speeds of 2040 MB/s guarantee that data is written swiftly and safely to the card, perfectly capturing everything as you intended. It is also approved for real-time broadcasting and supports raw continuous-burst shooting without delay - never miss those precious split-second moments!
Streamlined Workflow
Capable of offloading data at speeds reaching up to 3630 MB/s, the BLACK CFexpress Type B 4.0 card ensures quick and efficient data transfers from card to computer for immediate access to your files and sooner post-production start time. This is ideal for photographers and videographers who need to quickly unload large amounts of data and get back to shooting.
Tested for Compatibility
Each CFexpress Type B card has undergone extensive testing to ensure full functionality and performance in today's high-end hosts. Built to meet the extensive demands of today's broadcast and photography industries, the BLACK CFexpress card is the card you can trust for fast, reliable photo & video capture. It is important to note though that CFexpress Type B cards are not backwards compatible with either CFexpress Type A, CFast 2.0, or CompactFlash hosts.
48-Hour Replacement Guarantee
Delkin BLACK memory cards come with a premium 48-hour replacement guarantee in addition to their limited lifetime warranty policy. Delkin will replace any non-working card within 48 hours or less (not including weekends), prior to receiving your non-working card. You can also replace your card over the counter at any authorized Delkin BLACK reseller. To activate your BLACK card's free replacement program and lifetime warranty, simply register your card online with Delkin.
UPC: 814373025603

Delkin Devices 1TB CFexpress Type B Specs

Quantity
1
Card Type
CFexpress Type B
Storage Capacity
1 TB
Bus Type
PCI-Express 4.0
Read Speed
Maximum: 3630 MB/s
Write Speed
Maximum: 3130 MB/s
Sustained: 2040 MB/s
Minimum: 400 MB/s
Video Performance Guarantee
VPG- 400
Operating Conditions
32 to 158°F / 0 to 70°C
Packaging Info
Package Weight
0.075 lb
Box Dimensions (LxWxH)
5.6 x 4.35 x 0.8"

Delkin Devices 1TB CFexpress Type B Reviews

Best 2TB card

By Brett
Rated 5 out of 5
Date: 2026-06-03

I was able to snag this card for $500 in Nov 2025 in the daily deal zone. I haven't had any issues with the card and it works flawlessly with my canon R5 Mark II. I really like that it has a lifetime warranty that seems like it would be hassle free as I could take it to a retailer near me or the manufacture for a replacement.

Flawless (512GB Delkin Black)

By Robert
Rated 5 out of 5
Date: 2026-05-20

This is a great card for the Z9. I also have a Delkin Black 650GB CF Express-B card, and would recommend the 512GB over the 650GB. The 650GB card has issues being ejected from the card reader on a MacBook, the 512GB does not.

See any errors on this page?

Is this compatible with Canon R5 II?

Is this compatible with Canon R5 II?
Asked by: Tao
As of Summer 2025, the Canon R5 Mk II max capacity for both the CF Express Type B and SD cards was 2 TB.
Answered by: Timothy
Date published: 2025-08-27

can the Delkin Devices 512GB BLACK CFexpress Type

can the Delkin Devices 512GB BLACK CFexpress Type B 4.0 Memory Card, BH #DECB4BV4512 handle heat especially in summer? Some cards overheat and stops camera.
Asked by: SANDY
The Delkin Devices 512GB BLACK CFexpress Type B 4.0 Memory Card is a very good memory card. Like all CFexpress cards, with continued use / constant recording of video clips, they do get warm. That is the nature of CFexpress Type B cards.
Answered by: Rob K
Date published: 2026-05-07

Are these cards compatible with the Nikon Z8?

Are these cards compatible with the Nikon Z8?
Asked by: Michael
Yes, the Delkin Devices 512GB BLACK CFexpress Type B 4.0 Memory Card, BH #DECB4BV4512, is compatible with the Nikon Z8 Mirrorless Camera.
Answered by: Cindy H
Date published: 2025-04-21

Is this compatible with Sony A73?

Is this compatible with Sony A73?
Asked by: Warren
The Delkin Devices 512GB BLACK CFexpress Type B 4.0 Memory Card is not compatible with the Sony A7III camera. The A7III uses SD cards. Slot 1: SD/SDHC/SDXC (UHS-II) Slot 2: SD/SDHC/SDXC/Memory Stick Duo Hybrid (UHS-I)
Answered by: Rob K
Date published: 2025-06-26

Is this compatible with a canon r5mark2?

Is this compatible with a canon r5mark2?
Asked by: Kevin
Yes, the Delkin Devices 512GB BLACK CFexpress Type B 4.0 Memory Card is compatible with the Canon R5 Mark 2 camera.
Answered by: Dan W
Date published: 2026-05-10

Can the Sony MRW-G1 read the Delkin Devices 512GB ...

Can the Sony MRW-G1 read the Delkin Devices 512GB BLACK CFexpress Type 4.0 memory card?
Asked by: S
The Delkin Devices 512GB BLACK CFexpress Type B 4.0 Memory Card can be read in the Sony MRW-G1 card reader but the card reader does not support the 4.0 transfer speed.
Answered by: Dan W
Date published: 2025-11-24

Does it work with Nikon ZR Red Raw recording? It i

Does it work with Nikon ZR Red Raw recording? It is not on the Nikon ZR's list of supported Red raw recording card. Any info why?
Asked by: Vesa
Yes, the Delkin Devices 512GB BLACK CFexpress Type B 4.0 Memory Card supports RAW recording on the Nikon ZR Cinema Camera.
Answered by: Marvin H
Date published: 2026-05-24
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