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Delkin Devices 1TB POWER 4.0 CFexpress Type B Memory Card (2-Pack)

BH #DEDCFX4P1TB2
71 reviews
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Delkin Devices 1TB POWER 4.0 CFexpress Type B Memory Card (2-Pack)

2

Pack

Key Features
  • 1TB Storage Capacity
  • PCIe 4.0 x2 Bus
  • Max Read Speed: 3560 MB/s
  • Max Write Speed: 3220 MB/s
Combining industrial strength and reliability with enhanced performance, the 1TB POWER 4.0 CFexpress Type B Memory Card from Delkin Devices features a storage capacity of 1TB and is designed for professional photographers, videographers, and high-end cinematic hosts. It is well-suited for raw and continuous-burst photography as well as 8K, 6K, and 4K video at high bit rates and frame rates. Thanks to a PCIe 4.0 x2 bus, you can achieve maximum read speeds up to 3560 MB/s, maximum write speeds of 3220 MB/s, and sustained write speeds of 1570 MB/s.
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$999.98
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Capacity
512GB
1TB
2TB
Quantity
1
2
Kit Configuration
Card Only
with CFexpress Card Reader
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800-606-6969

Delkin Devices Power CFexpress Type B 4.0 Overview

Combining industrial strength and reliability with enhanced performance, the 1TB POWER 4.0 CFexpress Type B Memory Card from Delkin Devices features a storage capacity of 1TB and is designed for professional photographers, videographers, and high-end cinematic hosts. It is well-suited for raw and continuous-burst photography as well as 8K, 6K, and 4K video at high bit rates and frame rates. Thanks to a PCIe 4.0 x2 bus, you can achieve maximum read speeds up to 3560 MB/s, maximum write speeds of 3220 MB/s, and sustained write speeds of 1570 MB/s.

To help facilitate card usage in almost any environment as well as keeping your content safe, Delkin designed its POWER Series to be resistant to shock and water. Please note that this card is not compatible with CompactFlash, CFast 2.0, or CFexpress Type A hosts.

Streamlined Workflow
Capable of offloading data at speeds up to 3560 MB/s, this POWER CFexpress card ensures quick and efficient data transfers from card to computer for immediate access to your files and sooner postproduction 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 POWER 4.0 CFexpress Type B card has undergone extensive testing to ensure full functionality and performance in today's high-end hosts. It is important to note, that CFexpress Type B cards are not backwards compatible with either CompactFlash, CFast 2.0, or CFexpress Type A hosts.
UPC: 814373025047

Delkin Devices Power CFexpress Type B 4.0 Specs

Quantity
1
Card Type
CFexpress Type B
Storage Capacity
1 TB
Bus Type
PCI-Express 4.0
Read Speed
Maximum: 3560 MB/s
Write Speed
Maximum: 3220 MB/s
Sustained: 1570 MB/s
Packaging Info
Package Weight
0.06 lb
Box Dimensions (LxWxH)
6.2 x 4.25 x 0.35"

Delkin Devices Power CFexpress Type B 4.0 Reviews

Great Memory Cards

By Ben
Rated 5 out of 5
Date: 2026-09-01

I ordered these memory cards because the I currently had were smaller memory wise and I am going to be going on a long vacation and I felt I needed a larger capacity memory for the trip. I previously used this brand and I have been happy with the quality and reliability of the cards. These are now the 4.0 version and so I thought this was a great time to upgrade. Happy with the cards so far and have no regrets in making this purchase. I would recommend this product to others.

Better than SD for Video and Large Pics

By Michael
Rated 5 out of 5
Date: 2026-08-28

I just recently got my first mirrorless capable of holding a CF card. Using the CF for RAW and video and using the SD for jpeg backup. A bit nervous at first because I didn't recognize this brand name. But it seemed to be well reviewed. And after a month of ownership, absolutely no issues. Actually, it did seem to get hung a bit on something coming in and out the camera at first. But fine now.

See any errors on this page?

Will this easily work with ALL codecs and ...

Will this easily work with ALL codecs and framerates on the GH7?
Asked by: Hugh
Yes, the Delkin Devices 2TB POWER 4.0 CFexpress Type B Memory Card is compatible with the Panasonic Lumix GH7 Mirrorless Camera.
Answered by: Samik G
Date published: 2025-10-17

Will this work for a Canon R5?

Will this work for a Canon R5?
Asked by: Collin
Yes, the Delkin Devices 512GB POWER 4.0 CFexpress Type B Memory Card, BH #DEDCFX4P512, is compatible with the Canon EOS R5 Mirrorless Camera.
Answered by: Cindy H
Date published: 2025-03-18

Trying to figure out best Delkin card to buy. ...

Trying to figure out best Delkin card to buy. Seems harder and harder to justify considering the older Black cards?
Asked by: Andrew
The Delkin Devices 1TB POWER 4.0 CFexpress Type B Memory Card is suitable for most cameras.
Answered by: Lawrence C
Date published: 2025-10-24

This will work for Blackmagic Pyxis 6k?

This will work for Blackmagic Pyxis 6k?
Asked by: WISNER
Yes, Delkin Devices 512GB POWER 4.0 CFexpress Type B Memory Card Kit (2-Pack) is compatible with the Blackmagic Design PYXIS 6K Cinema Box Camera.
Answered by: Boyd H
Date published: 2026-01-27

Planning on an Antarctica trip next year. Will ...

Planning on an Antarctica trip next year. Will these cards work under those harsh weather extremes?
Asked by: George
I have been to Antarctica and the Artic regions during their respective summer periods. Most of the time in Antarctica, it was in the mid-thirties. In the Artic (Svalbard region) it was even warmer, low to mid forties. I over-dressed at first, but it was no worse than a Michigan winter. Camera and cards worked well for thousands of shots.
Answered by: Andrew
Date published: 2026-04-08

compatible with the Canon R6 Mark III?

compatible with the Canon R6 Mark III?
Asked by: Robbin
Yes, the Delkin Devices Power CFexpress Type B 512GB is compatible with the Canon R6 Mark III, it supports the camera’s required CFexpress Type B interface for high-speed recording.
Answered by: Nick Y
Date published: 2025-11-30

This card has higher sustained write compared to ...

This card has higher sustained write compared to all older Black card gens. why would anyone buy older gen Black cards overthis?
Asked by: Andrew
There is no reason to buy a slower Delkin card from the Black line over the Delkin Devices 1TB POWER 4.0 CFexpress Type B Memory Card. For this reason, many of the older Delkin Black cards are being discounted and/or discontinued.
Answered by: Michael S
Date published: 2024-10-07

How do these differ from the Delkin Black series? ...

How do these differ from the Delkin Black series? Running temperature wise, sustained write speeds, etc?
Asked by: Richard
The Delkin Devices 1TB POWER 4.0 CFexpress Type B Memory Card can write at a similar max speed and runs at a similar temperature than the Delkin Devices 1.3TB BLACK 4.0 CFexpress Type B Memory Card. However, the sustained write speed of the BLACK card is higher at 2150 MB/s vs. 1570 MB/s on the POWER card.
Answered by: Andrea B
Date published: 2024-09-15
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