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Best CFexpress Type-A Memory Cards For Your Camera

  • January 5, 2023

CFexpress Type-A memory cards are a new format that Sony has been adopting for many of their new full-frame mirrorless cameras.

CFexpress Type-A cards are slightly smaller, although thicker, and faster than UHS-II memory.

Many of the new Sony cameras take both CFexpress Type-A and UHS-II memory cards but require the faster CFx Type-A cards for some slow-motion video features like 4k120 to record in the S & Q mode.

 

Fastest CFx Type-A Memory Cards

Currently, there are only a few CFexpress Type-A cards and more will be added as they are released.

These benchmarks are taken with an AJA system test with a Macbook Pro, using the Prograde CFx Type-A reader.

Software used was AJA System Test. Resolution: 5120×2700 5k Red / Test File Size: 4GB / Codec Type 16bit RGBA. Speeds are listed in Megabytes per second.

 

Memory CardsUSB WriteUSB ReadCFxB HideUHS-II HideUHS-I HideHideAmazonAdoramaB&HLinks
CFx-BX
Lexar 512 Pro Diamond10111024XB&H
Lexar 128/256/GB Diamond10131023XAmazon/ B&H
Lexar Gold 1TB/2TB10191020XB&H
Lexar Gold 512GB10021020XAmazon/ B&H
Lexar Gold 64/128/2569571022XAmazon/ B&H
Sandisk Pro-Cinema 256GBXAmazon/ B&H
Sandisk Extreme 512GBXX
Sandisk Extreme 128/256GB4891020XAmazon/ B&H
Sandisk Extreme 65GBXX
Sony Tough 128/256/512GB9891024XAmazon/ B&H
Prograde Cobalt 165/325/650GB10021022XAmazon/ B&H
Prograde 1TB gen3X
Prograde 512GB gen3X
Prograde 512/1TB gen2X
Prograde 256GB gen2X
Prograde 128GB gen2679778XAmazon/ B&H
Delkin Black 150/325/650GB10031023XB&H
Delkin Black 75GB9791022XB&H
Delkin Black 128GB10001022XXB&H
Delkin Power 128/256/512/1TB/2TB9991022XAmazon/ B&H
Delkin Prime 64GB9741023XXAmazon
Nikon 660GB9871022XAmazon/ B&H
Hoodman Steel 128GB6081018XAmazon/ B&H
Wise Pro 640GBX
Wise Pro 160/320GB9641024XB&H
Wise 1TB Mk IIX
Wise 512GB Mk IIX
Wise 128GB1901023XAmazon/ B&H
Angelbird Pro 1TB/2TB/4TB MkII 872835XAmazon/ B&H
Angelbird Pro 2TB MkIX
Angelbird Pro 256GB844961XXB&H
Angelbird Pro XT 330/660/1320GB9941020XAmazon/ B&H
Angelbird Pro SE 512GB 822878XAmazon/ B&H
Angelbird Pro SX 160GB9731021XAmazon/ B&H
OWC Atlas Ultra 165/325/650GB9961010XAmazon/ B&H
OWC Atlas Pro 512GB/1TB/2TBX
OWC Atlas Pro 256GBXX
OWC Atlas Pro 128GB239978XAmazon/ B&H
Sabrent Rocket 512GB/1TB/2TBXB&H
Sabrent Rocket 512GB/1TBXXAmazon
RitzGear 256/512/1TBXAmazon
RitzGear 128GB2511019XAmazon
Pergear Ultra 1TB/2TBXAmazon
Pergear Pro 512GBXAmazon
Pergear Pro 256GBXAmazon
Pergear Lite 128GB324978XAmazon
Pergear Lite 64GBXAmazon
Silicon Power Cinema 512GB/1TBXAmazon/ B&H
Silicon Power Cinema 256GB453996XAmazon/ B&H
Silicon Power Cinema 128GBXAmazon/ B&H
Transcend 820 512GBXB&H
Transcend 820 256GBXB&H
SunEast 512GB/1TBXX
CFx-A
Sony Tough 640GBAmazon/ B&H
Sony Tough 320GBAmazon/ B&H
Sony Tough 160GBAmazon/ B&H
Sony Tough 80GB641852Amazon/ B&H
Lexar 320GB837885Amazon/ B&H
Lexar 160GB825886Amazon/ B&H
Lexar 80GBAmazon/ B&H
Delkin Black 160GBB&H
Delkin Black 80GB639852B&H
Delkin Power 160GBB&H
Delkin Power 80GB641847B&H
ProGrade 160GB691845B&H
UHS-II V90X
Sandisk Extreme Pro V90252279XAmazon/ B&H
Lexar 2000x V90219256XAmazon/ B&H
Toshiba Exceria Pro V90213244XAmazon
Transcend v90175263XAmazon/ B&H
Sony G Tough v90239275XAmazon/ B&H
Delkin Black v90253278XB&H
Delkin Power v90240275XB&H
Fujifilm Elite II V90158277XX
Adata v90229268XAmazon
Hoodman Steel 2000x V90155249XAmazon/ B&H
ProGrade V90229270XAmazon/ B&H
PNY EliteX-Pro90 V90XXAmazon/ B&H
Amplim 2000x V90XXAmazon
Angel Bird V90 II257271XAmazon/ B&H
OWC Atlas Ultra V90XXB&H
OWC Atlas S Pro V90XXB&H
Kingston Canvas React V90256274XAmazon/ B&H
Kodak V90 64GB260272XAmazon
Ritz Gear VideoPro V90258273XAmazon
Wise V90 Pro256275XB&H
UHS-II V60X
Lexar 1800x V60176242XAmazon/ B&H
Lexar 1667x V6099242XAmazon/ B&H
Lexar 1000x V60108167XX
Sony M Tough V60155268XAmazon/ B&H
Sony M v60XXB&H
Sony E v60142252XAmazon/ B&H
Sony E v3073247XXB&H
Delkin Prime v6098275XB&H
Hoodman Steel 1500x V6099273XAmazon/ B&H
ProGrade V6098155XAmazon/ B&H
PNY EliteX-Pro60 V60XXAmazon/ B&H
Amplim 2000x v60136253XAmazon
Amplim 1900x V6097275XX
Angel Bird V60 II144243XAmazon/ B&H
OWC Atlas Pro V60XXB&H
FreeTail Evoke Pro V6096272XX
Ritz Gear Video Pro V60 A1XXAmazon
UHS-I U3X
Sandisk Extreme Pro U3144172XAmazon/ B&H
Sandisk Extreme Plus U361143XXAmazon
Sandisk Extreme U35193XAmazon/ B&H
Sandisk Ultra U1 Old2793XX
Kingston CanvasGo! Plus U3124161XAmazon
Kingston Canvas Select Plus U38493XAmazon
Lexar 633x U33593XAmazon
Sony Professional U38491XX
Sony U3 946091XX
Sony U3 958190XX
Transcend U3 High Performance A2XXAmazon
Transcend U37991XAmazon
PNY Pro Elite U3 256GB8793XAmazon
PNY Elite-X U3 128 GB5692XAmazon
PNY Elite Performance U36391XXAmazon
Delkin Black U38693XB&H
Delkin Advantage U37793XAmazon/ B&H
Toshiba Exceria Pro U37491X
Toshiba Exceria U32991X
Verbatim Pro+ U37791XAmazon
Verbatim Pro U34690XAmazon
Amplim 667x A1 V305093XX
RitzGear Extreme Performance A1 V306293XAmazon

 

You can see these benchmarked in various Sony Cameras.

Sony A1 Memory Card Benchmarks

Sony A7sIII Memory Card Benchmarks

Sony A7IV Memory Card Benchmarks

 

Write Speed Results

The ProGrade 160GB card is slightly faster than the Sony 80GB or Delkin cards. My guess is because I only have a Prograde reader right now and their hardware is probably all in spec with each other.

Delkin is the latest brand to release CFexpress cards and their Power card might just be the best bang for the buck.

Both Delkin and Prograde are very good brands and their cards always perform well with Sony cameras.

 

Read Speed Results

When looking at Reading Speeds, it looks like the Delkin cards are performing the best right now, just ever so slightly faster than the Prograde cards. Delkin cards are the newest cards added to the benchmarks and it could just come down to slightly newer flash.

 

Current CFexpress Type A Cards Available

There aren’t too many CFexpress Type A cards on the market. Here are the options with some information about each card.

 

Sony Tough CFexpress A Memory Cards

Sony Tough CFx AAvailable At: Amazon / Adorama / B&H

The Sony CFexpress Type A memory cards come in two sizes, 80GB and 160GB. Each size is rated at the same read and write speeds and the size we benchmarked was the 80GB size.

Sustained write speed of 400MB/s (VPG 400).

Operating temperature of -13 to 158°F / -25 to 70°C, is shockproof, and X-Ray Proof.

IPX7 water ingress protection rating.

IP5X dust ingress protection rating (IP57).

Thermal Throttling occurs very quickly, after about a minute, much quicker than the Prograde card. I did test the Prograde card first so this quicker ramp up into the thermal throttling could be from the reader being slightly warmer to start.

The speeds drop to around 317.4MB /s Write, and 285.4MB/s read and the card is fairly painful to touch due to high temperatures. Slightly hotter than the Prograde card.

 

Thermal Throttlings Speeds

317.4 MB/s Write

285.4 MB/s Read

 

I/O Profile

Sony I/O Profile

 

I/O Profile After Thermal Throttling

Sony Thermal Throttling I/O Profile

 

ProGrade CFexpress A Memory Cards

Prograde CFx A Memory CardAvailable At: Amazon / Adorama / B&H

The Prograde Cfexpress Type A card currently comes in just one size, 160GB. It’s rated at an 800MB/s read speed and 700MB/s write speed.

Operating temperatures are not specified. It is shockproof and X-Ray Proof.

Built-in Thermal Throttling.

Once thermal throttling kicks after a few minutes of continuous reading and writing, speeds drop to around 436.8 MB/s Write and 334.2 MB/s Read. 

It will go gradually go down to around 300MB/s read and write speeds if you continue to push it. At this point, the card will get hot enough where it slightly stings the skin.

It seems the Prograde card has a more gradual decline in performance as it thermal throttles, whereas the Sony card dropped quickly to around 300MB/s read and write.

 

Thermal Throttling Speeds

436.8 MB/s Write

334.2MB/s Read

 

I/O Profile

ProGrade I/O Profile

 

I/O Profile After Thermal Throttling

ProGrade Thermal Throttling I/O Profile

 

How Are CFexpress Type A Cards Different Than Type B?

CFexpress Type A Cards use the NVMe PCIe 3.0 x4 bus with a single lane. The main difference between type A and type B cards other than their size is that Type B cards use a dual-lane system for speeds up to 1700MB/s whereas Type A cards only have a single lane throughput for a max speed of 800MB/s.

 

**This website contains affiliate links and I will be compensated if you click them to make a purchase.
AGriffin

Professional editor, blogger and photographer from Los Angeles California.

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A professional freelance trailer editor. I've been blogging for a decade and this site focuses on benchmarking memory cards, camera accessories, and lens reviews. There will be a shift towards more education with color and editing so be sure to hit the bell in the bottom right to subscribe for updates. Read About to learn more.

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