What are CFexpress cards and how are they different from SD cards?

What are CFexpress cards?

As we mentioned a number of traces above, CFexpress cards are, on the whole phrases, reminiscence cards whose most important attribute is their excessive pace when making knowledge transfers, so they are good to fulfill the demand of photographic and video cameras. strongest in the marketplace. These kinds of cards make use of the PCI 3.zero interface. and NVMe protocols like these present in SSD strong state drives.

The most knowledge switch pace of a CFexpress kind C card (the quickest of the three accessible) is 4,000MB / s. In comparability, SD UHS-III cards attain round 600MB / s.

CFExpress card sorts

These cards are divided into three sorts: Type A, Type B and Type C. Each of those sorts has a different measurement and after all, a different switch pace.

Type A

CFexpress Type A are the smallest. They measure 20mm vast by 28mm lengthy by 2.8mm thick, together with the label space. Type A cards have a most theoretical switch pace of 1,000 MB / s, PCIe GenThree connection interface (1 line) and NVMe 1.Three protocol.

Type B

Type B cards are 38.5mm vast x 29.6mm lengthy x 3.8mm thick. This kind of card can theoretically attain 2,000 MB /, they have a PCIe Gen3 (2 line) connection interface and NVMe 1.Three protocol.

Type C

Type C cards are the most important. They measure 54mm x 74mm x 4.8mm. They have a PCIe Gen3 (Four line) connection interface and NVMe 1.Three protocol.

Differences with SD cards

The most important distinction between this kind of card and SD cards, even the quickest ones comparable to UHS-III SD, is their switch pace that permits us to seize photographs and movies with a considerable amount of info (RAW codecs for instance) because of that writing capability so excessive.

The most important cause that the cards have different sizes is as a result of every mannequin has a different variety of PCIe knowledge switch lanes to supply different switch speeds. Logically, resulting from their measurement, Type C cards are designed to be used in computer systems and strong state drives.

What cameras are appropriate with CFexpress?

Most of the high-end cameras that hit the market already assist this expertise. Some present digital camera fashions that provide a number of CFexpress card slots are:

  • Canon C500 Mark II (Type B)
  • Nikon D6 (Type B)
  • Canon EOS-1D X Mark III (Type B)
  • Panasonic Lumix S1 / S1R (Type B)
  • Sony a7S III (Type A)
  • Nikon Z6 / Z7 (Type B)
  • Canon EOS R5 (Type B)

What manufacturers does CFexpress manufacture?

Currently the primary manufacturers that manufacture this kind of cards are SanDisk, Delkin Devices, Sony, Lexar Professional and ProGrade Digital.

Best CFexpress cards on Amazon

If you are on the lookout for one in all these cards to your digital camera then we present you a variety with a number of the greatest you’ll find on Amazon. Keep in thoughts that because of the nonetheless restricted market, these cards have fairly excessive costs, far more than SD cards, even the quickest.
A 128GB Type B CFexpress is priced at round € 280/350 and an 80GB and 160GB Type A CFexpress can price between € 250-500.

SanDisk Extreme PRO CFexpress Card

This Type B card achieves learn speeds of as much as 1700mb / s and write speeds of as much as 1400mb / s. It helps 4K video recording and consists of RescuePRO Deluxe file restoration software program that makes it straightforward to get better by chance deleted information (obtain required).

Delkin Devices CFexpress

This Type B card makes use of Gen Three PCI Express interface and helps NVM Express. It affords recording speeds of as much as 1540MB / s for and helps 8K, 6K and 4K. According to the producer, it’s able to studying with out stopping steady taking pictures in RAW and affords switch speeds of 1730 MB / s.

Sony CEB-G128

This kind B card has an ultra-fast recording pace of as much as 1480mb / s and is able to supporting a number of RAW pictures with out drawback. Its studying pace is 1700 MB / s and it has software program to get better information which have been deleted by mistake.


This Type A card affords ultra-fast recording as much as 700mb / s for burst seize and excessive decision and learn pace of as much as 800mb / s. It has IP5-rated ruggedness, d2 dimensions 20 x 28 x 2.8mm, and 80GB of storage.

CFexpress card readers

Just as vital as a great card is to have a reader that permits us to simply switch its content material to our pc to be able to work with it.

Rocketek USB 3.1 CFexpress Card Reader

This gadget has a USB 3.1 knowledge switch price of 10 Gbps. It has a USB A to USB Type-C cable and a USB C to USB C cable. It is appropriate with all types of MacE book Pro, Mac Air, computer systems and cell units in addition to Windows XP / Vista / 7/Eight working programs / 8.1 / 10 and MacOS.

Bawanfa CFexpress

This CFexpress reader has a pace of as much as 10 Gbps and helps reminiscence card knowledge transfers of as much as 2 TB. It includes a USB A to USB Type-C cable and a USB C to USB C cable and requires no exterior energy provide.