Essential Pro – CFexpress 4.0 Type B










Are you prepared to transform your workflow with CFexpress 4.0?

Our Essential Pro CFexpress 4.0 Type B cards redefine performance with speeds up to 3,750 MB/s read and 3,350 MB/s write, VPG400-certified for high-end cameras like Sony – ideal for professional creatives seeking seamless capture and editing of high-resolution footage.

Our promise

CFexpress memory card using Exascend’s patented technologies.

Tested & certified

Approved by the CompactFlash® Association, guaranteeing a minimum 400 MB/s write speed.

Low power, high performance

1.25W power at 400 MB/s sustained write – better energy efficiency.

Made for professionals

Compatible with camera systems using CFexpress Type B cards.

Capture high quality content

Delivers 8K resolution and beyond at any frame rate you can think of.



Physical information
Form factorCFexpress Type B
InterfacePCIe 4.0 (Supports NVMe 1.4)
Capacity / Part number1TB / EXPC4EB001TB
512GB / EXPC4EB512GB
256GB / EXPC4EB256GB
Flash type3D TLC
Input voltage3.3V±5%
Power consumptionActive ≈1.25W (at 400MB/s sequential write); Idle <0.3W
Max. sequential read3,750 MB/s (1TB/512GB)
3,700 MB/s (256GB)
Max. sequential write3,350 MB/s (1TB/512GB)
3,150 MB/s (256GB)
Sustained read3,500 MB/s (1TB/512GB)
3,400 MB/s (256GB)
Sustained write1,750 MB/s (1TB/512GB)
900 MB/s (256GB)
Operational temperature-12°C ~ 72°C
Storage temperature-40°C ~ 85°C
Max. TBW600 TB (1TB)
300 TB (512GB)
150 TB (256GB)
MTBF2,000,000 hours

Limited lifetime


Camera TypeBrandModel
Video cameraCanonR5
NikonZ7 Ⅱ

Flyer Download

Essential Pro CFexpress 4.0 Type B0.98 MB

Advanced Technology

How can we promise that our product delivers the highest performance and reliability?

We at Exascend are a team of engineers, with hardware design, firmware development and manufacturing all under one roof. We strive to listen to your feedback and leverage the newest technologies, so you never need to worry about nightmares like data loss or running out of space.


Our cutting-edge Afterburner™ technology ensures maximum performance, especially during fast-action or burst mode photography.

Data Retention Plus™

Our technology mitigates the risk of data integrity issues resulting from the natural degradation of flash storage – even under extreme workloads.


Our technology ensures unbeatable stable write performance – so you never need to worry about data loss or recording failures.

Adaptive Thermal Control

Overheating can lead to issues like frame drops and slowdowns. We prevent overheating from the get-go with this unique technology.


RAID ECC (Error-Correcting Code) is an advanced Exascend technology that avoids the risk of data loss and allows the storage device to rebuild even severely corrupted data.


With this exclusive technology, memory cards can handle both burst shooting and extended recording seamlessly – balancing performance and battery life.

Conformal Coating

Our Conformal Coating technology protects your Exascend SSD against environmental threats and makes sure that it is safe from elements like water and dust.

Yes, there are even more technologies behind our products!

We have developed a wide range of technologies to provide filmmakers and content creators with maximum capacity, performance and reliability throughout the whole video production workflow.

Discover more



Why do I need a VPG400-certified CFexpress Type B card?

Attention Sony camera users: To ensure optimal performance, it’s crucial to use VPG400-certified CFexpress Type B cards. As of March 2024, Sony has confirmed that none of their cameras are compatible with non-VPG CFexpress Type B memory cards.

These VPG400-certified cards guarantee consistent write speeds of at least 400 MB/s, significantly reducing the risk of frame drops and freezes. This reliability makes them perfect for demanding tasks like high-resolution burst photography and shooting high-bitrate videos.

What is the difference between CFexpress 2.0 and 4.0 memory cards?

CFexpress 4.0 cards are engineered to operate on advanced PCIe Gen 4 interface, effectively doubling the bandwidth compared to the previous CFexpress 2.0 standards.

This allows them to set a new benchmark with maximum speeds reaching 4GB/s for Type B and 2GB/s for Type A cards.

Is CFexpress 4.0 backward compatible with CFexpress 2.0?

Yes, CFexpress 4.0 cards maintain full backward compatibility with CFexpress 2.0.

What is the difference between CFexpress Type A and Type B?

CFexpress Type A and CFexpress Type B memory cards are both PCIe-based, although their physical dimensions and transfer speeds differ. CFexpress Type B measures 29.8mm(Width)*38.5mm(Height)*3.8mm(Thickness), whereas CFexpress Type A measures 20mm(Width) x 28mm(Height) x 2.8mm(Thickness).

A Type B card is capable of transferring data at twice the speed of a Type A card.

Which cameras use CFexpress Type B cards?

Some current cameras with CFexpress Type B card slots include:

Nikon Z6/Z7
Nikon Z6 II/Z7 II
Nikon Z8
Nikon Z9
Nikon D6
Nikon D850
Canon EOS R5
Canon C500 Mark II
Canon EOS-1D X Mark III
Canon EOS R3
Panasonic Lumix S1 / S1R
Fujifilm GFX100 II
Fujifilm X-H2S / X-H2

Do you also offer a CFexpress 4.0 memory card reader?

Currently, we offer a single-slot 20 Gbps CFexpress Type B reader, which delivers 2,000 MB/s transfer speeds. We are also launching a 40 Gbps CFexpress 4.0 Type B reader very soon.

Can I use my CFexpress Type B card in an XQD slot?

For cameras with XQD slots, a firmware upgrade is required to enable CFexpress compatibility. Please check your host device’s compatibility with your camera manufacturer.

Key Features

CFexpress 4.0 revolution

PCIe Gen 4 interface doubles the bandwidth to an unprecedented 4GB/s for Type B cards.

New era of performance

Future-proof technology that keeps up with the needs of high-performance cameras while maintaining full backward compatibility.


Flawless 8K/12K video capture at frame rates up to 120fps without frame drop.

Guaranteed for life

Generous limited-lifetime warranty and data recovery.

Stay cool

Thermal efficiency through our trademark Adaptive Thermal Control™ technology.

No overheating

10°C (50°F) cooler with aluminum alloy, ensuring uninterrupted capture of your cinematic masterpieces.

Optimize your video production workflow

Where to buy?

Find a store

Any questions?


Need some technical support?

Learn more

Accidentally formatted your storage device?


We’re here for you whenever you need us

We'll reach out to you shortly via email after you submit the form!

Scroll to Top