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Silicon Power 256GB CFexpress Type B Memory Card

BH #SI256CFB2110 • MFR #SP256GBCFEB21V10
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Silicon Power 256GB CFexpress Type B Memory Card
Key Features
  • 256GB Storage Capacity
  • PCIe 3.0 x2 Bus
  • Max Read Speed: 1800 MB/s
  • Max Write Speed: 600 MB/s
Designed for next-gen photo and video cameras, including DSLR, cinema, and mirrorless cameras, the 256GB CFexpress Type B Memory Card from Silicon Power lets you capture raw and 8K video, as well as raw and continuous photo bursts. It uses the PCIe 3.0 x2 bus to provide maximum read speeds of 1800 MB/s and maximum write speeds of 600 MB/s, as well as minimum sustained write speeds of 450 MB/s. This card is also backward compatible with select XQD devices that have received a firmware update to enable compatibility with CFexpress Type B.
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Silicon Power CFexpress Type B Overview

Designed for next-gen photo and video cameras, including DSLR, cinema, and mirrorless cameras, the 256GB CFexpress Type B Memory Card from Silicon Power lets you capture raw and 8K video, as well as raw and continuous photo bursts. It uses the PCIe 3.0 x2 bus to provide maximum read speeds of 1800 MB/s and maximum write speeds of 600 MB/s, as well as minimum sustained write speeds of 450 MB/s. This card is also backward compatible with select XQD devices that have received a firmware update to enable compatibility with CFexpress Type B.

Performance for Better Shots
When you're out shooting and in the midst of the action, you need a card that doesn't compromise between performance, capacity, and durability. This CFexpress Type B card makes use of its high-speed PCIe Gen 3.0 x2 interface to deliver professional-level performance coupled with ultrahigh capacities and reliable operation.
Push the Limits of Your Camera
Give your CFast 2.0 and XQD form factor cards a rest, as this CFexpress Type B card is more than 3 times faster. It's designed for high-end, next-gen devices such as cinema and DSLR cameras to leverage their maximum performance and capture the high bit rate and frame rate raw videos and photos.
Pro-Level Quality with 8K Video
With its high-speed PCIe 3.0 x2 interface delivering low latency, this card enables smooth video captures on your devices in 8K Ultra HD resolution, so you can get flawless recordings with clear details.
Speeds to Keep up with the Action
With this CFexpress Type B card, you'll get read speeds up to 1800 MB/s and write speeds up to 600 MB/s for cinema-quality videos and magazine-quality photos. With these speeds, the uncompressed continuous raw shooting of fast-moving action is a breeze and transfers are completed in the blink of an eye.
Storage That Won't Slow You Down
Don't slow down your shoot by having to swap cards in the middle. With a storage capacity of 256GB, you'll have plenty of space to keep shooting without interruption. That means tons of room for high bit rate raw videos and photos, all within a tiny CFexpress Type B form factor.
Protection from 3 Safety Mechanisms
  • Auto Temp Adapter regulates the temperature of the card during extreme conditions such and heavy workloads to prevent overheating and maintain sustained performance.
  • Smart Power Saver helps preserve the host's battery life and the card's endurance by managing power usage efficiently and effectively.
  • Power Loss Shield protects the card's data in the event of a sudden power loss by triggering a safe shutdown.
Works with XQD Cameras
For greater versatility, this card is also backward compatible with XQD cameras and camcorders that adopt firmware enabling CFexpress Type B. Get next-gen performance on existing devices.
UPC: 886576083018

Silicon Power CFexpress Type B Specs

Quantity
1
Card Type
CFexpress Type B
Storage Capacity
256 GB
Bus Type
PCI-Express 3.0
Read Speed
Maximum: 1800 MB/s
Write Speed
Maximum: 600 MB/s
Minimum: 450 MB/s
Operating Conditions
14 to 158°F / -10 to 70°C at 8 to 95% Humidity
Storage Conditions
-40 to 185°F / -40 to 85°C at 8 to 95% Humidity
Packaging Info
Package Weight
0.03 lb
Box Dimensions (LxWxH)
4.9 x 3.3 x 0.25"

Silicon Power CFexpress Type B Reviews

Not sure if good or bad.

By Chris
Rated 2 out of 5
Date: 2025-09-26

Right out of the packaging this card felt off, it just feels flimsy compared to my other cards. What really ruined it for me is I lost an entire photoshoots' worth of data because it was corrupted. I reformatted it and it still appears to work now. I still use the card but it's my bottom of the barrel card for me. I regret my purchase.

No other experience with CFexpress B - IMO it's great

By Guy
Rated 5 out of 5
Date: 2025-01-02

One of the shockers in outfitting a Nikon D850 is the price of CFexpress type B memory cards. This particular card attracted me with its capacity, price, and favorable reviews. In addition, I had purchased a Silicon Power 128GB SD card for the Nikon, which was working out nicely. This was my first experience with CFexpress B. If fit the D850 perfectly and ejected easily (no binding). In a Vantec SD/CFexpress B card reader, large groups of photos transfer to my PC near instantly. This is the extent of my testing. I don't do burst shooting or videos. Thus far, this card has met my needs perfectly. I wouldn't hesitate to buy another. Always great service from B&H.

See any errors on this page?

Does this work on the Red Komodo X?

Does this work on the Red Komodo X?
Asked by: Attila
The sustained write speed will not be enough to handle most footage shot on the RED Komodo-X. It is advised to use the cards made and tested for the camera, the RED DIGITAL CINEMA 1TB PRO CFexpress 2.0 Type B Memory Card or similar capacity, because of the minimum sustained write speeds.
Answered by: Jonathan S
Date published: 2023-12-05

Compatible w/ Nikon d850

Compatible w/ Nikon d850
Asked by: roger
Yes, the Silicon Power 2TB CFexpress Type B Memory Card is compatible with the Nikon D850 DSLR camera. Make sure the camera's firmware is up-to-date.
Answered by: Samik G
Date published: 2024-06-07

Can it record 6.2k prores? For fujifilm xh2s.

Can it record 6.2k prores? For fujifilm xh2s.
Asked by: Apiwoot
The Silicon Power 1TB CFexpress Type B Memory Card should work fine with the Fujifilm xh2s shooting 6.4k. But it is not listed on the Fujifilm site as recommended. This is some recommended ones, https://bhpho.to/3QtzjTs.
Answered by: Rob K
Date published: 2023-11-05

Is it compatible with the Nikon Z9?

Is it compatible with the Nikon Z9?
Asked by: Hendrik
Yes, the Silicon Power 1TB CFexpress Type B Memory Card is compatible with the Nikon Z9.
Answered by: Stephen M
Date published: 2024-12-12

Can I record high frame rates on this card like ...

Can I record high frame rates on this card like 4k 120p? Is it compatible with Fujifilm Xh2s?
Asked by: Jad
The Silicon Power 1TB CFexpress Type B Memory Card can record high frame rates like 4k 120p and it is compatible with the FUJIFILM X-H2S Mirrorless Camera.
Answered by: Samik G
Date published: 2023-10-26
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