Essential Pro – CFexpress 4.0 Type A




*Actual product may have a different sticker design to that shown on the website.







Ready to enter the new era of cinematography storage?

Our Essential Pro CFexpress 4.0 Type A cards redefine performance with speeds up to 1,800 MB/s read and 1,650 MB/s write, along with capacities up to 1TB – perfect for professional creatives who demand 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.

Filming the project of a lifetime?

Avoid running out of space with up to 1TB storage capacity.

Made for professionals

Compatible with camera systems using CFexpress Type A, including Sony a1, a7S III, A7 IV, FX3 and FX6.

Capture high quality content

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



Physical information
Form factorCFexpress Type A
InterfacePCIe 4.0 (Supports NVMe 1.4)
Capacity / Part number1TB / EXPC4EA001TB
512GB / EXPC4EA512GB
256GB / EXPC4EA256GB
Flash type3D TLC
Input voltage3.3V±5%
Power consumptionActive <2.8W; Idle <0.5W
Max. sequential read1,800 MB/s (1TB/512GB/256GB)
Max. sequential write1,650 MB/s (1TB/512GB/256GB)
Sustained read1,800 MB/s (1TB/512GB/256GB)
Sustained write1,650 MB/s (1TB)
850 MB/s (512GB/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

Flyer Download

Essential Pro CFexpress 4.0 Type A452.8 KB

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



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.

Can I use CFexpress 4.0 cards on my current Sony Alpha and FX cameras?

Yes, CFexpress 4.0 cards are backward compatible, ensuring optimal performance even in legacy devices. This means you can use CFexpress 4.0 Type A cards on any existing Sony cameras that supports CFexpress 2.0.

What is CFexpress Type A?

“CFexpress Type A is a PCIe-based memory card format that is smaller than CFexpress Type B. A CFexpress Type A card is similar to an SD card in size, measuring 20mm(Width) x 28mm(Height) x 2.8mm(Thickness). This allows Type A and SD cards to both fit in the same slot. Cameras that offer CFexpress Type A slots typically support both types of media.

In terms of speed, CFexpress Type A cards are usually much faster than SD cards, making them ideal for photographers or videographers who need fast transfer speeds on compact cameras.”

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). CFexpress Type B cards also offers faster read and write speeds than Type A cards.

What is VPG? What are VPG200 and VPG400 certifications?

VPG stands for Video Performance Guarantee. The CompactFlash Association has defined the VPG200 and VPG400 standards, which are guaranteed to deliver sustained write speeds of 200 MB/s and 400 MB/s, respectively.

Which cameras use CFexpress Type A cards?

Some current cameras with CFexpress Type A card slots include:

Sony a1
Sony a7S III
Sony a7R V
Sony a7 IV
Sony FX3
Sony FX6

What is limited lifetime warranty?

Exascend defines our lifetime warranty as a warranty that is valid for as long as the product is owned by the customer. Lifetime warranties may not be recognized in certain countries or regions, such as Germany and Canada. Please check your local laws.

Key Features

CFexpress 4.0 revolution

PCIe Gen 4 interface doubles the bandwidth to an unprecedented 2GB/s for Type A 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 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.

Extended power

Engineered for longer battery life, ensuring uninterrupted capture of your cinematic masterpieces.

Optimize your video production workflow

Where to buy?

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