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CFExpress Type-B Reader

Sashi
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p.1 #1 · p.1 #1 · CFExpress Type-B Reader

Just got a R5 Mark II and a SanDisk Extreme Pro CFExpress 512GB card. I took about 3K photos with the camera on a recent trip and it took about 3 hours to transfer the images from the camera to the computer (I used the USB-C) connection. Would like to know from members who have been using the CFE Type-B cards on what their recommendations for a good card reader are. I am on a Win 10 laptop (workstation) and have TB3 ports.

Sep 01, 2024 at 06:18 PM

RoamingScott
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p.1 #2 · p.1 #2 · CFExpress Type-B Reader

Been very happy with my Sandisk Pro Reader, they come in a few flavors but I have just the CFE version.

I had a thread discussing missing files when using USB transfer from the camera and it affected a lot more people than you'd think or hope. I don't trust it at all after losing files multiple times. The card reader on the other hand just works.

Sep 01, 2024 at 06:20 PM

Eco-Scott
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p.1 #3 · p.1 #3 · CFExpress Type-B Reader

I use a ProgGrade Digital reader, which has both CFExpress B and SD slots. I'm very satisfied with the transfer rates.

https://www.bhphotovideo.com/c/product/1548490-REG/prograde_digital_pgrwcfxsdana_digital_cfxb_sdxc_sdhc_usb_3_1.html

Sep 01, 2024 at 07:59 PM

sjms
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p.1 #4 · p.1 #4 · CFExpress Type-B Reader

What ports do you have on your computer? That will make a big difference on data movement.

Both my base and laptop support Thunderbolt/USB 4.

You do want to match your throughput on devices. Also make sure you use the cables supplied with the reader and plug them into the correct port. cabling does make a difference

All these together make for a more consistent flow.

just for a reference: https://www.msn.com/en-us/lifestyle/shopping/the-best-usb-c-cables-for-all-your-devices/ar-AA1gMhJI?ocid=winp2fptaskbar&cvid=288b32b6d99a4e8da49fa2d115d0272a&ei=8

Sep 01, 2024 at 08:46 PM

Sashi
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p.1 #5 · p.1 #5 · CFExpress Type-B Reader

sjms wrote:
What ports do you have on your computer? That will make a big difference on data movement.

Both my base and laptop support Thunderbolt/USB 4.

You do want to match your throughput on devices. Also make sure you use the cables supplied with the reader and plug them into the correct port. cabling does make a difference

All these together make for a more consistent flow.

just for a reference: https://www.msn.com/en-us/lifestyle/shopping/the-best-usb-c-cables-for-all-your-devices/ar-AA1gMhJI?ocid=winp2fptaskbar&cvid=288b32b6d99a4e8da49fa2d115d0272a&ei=8

I have Thunderbolt 3 ports, should theoretically support up to 40Gbps. But most of these readers are limited to USB-C (10 Gbps)

Sep 02, 2024 at 08:00 AM

sjms
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p.1 #6 · p.1 #6 · CFExpress Type-B Reader

https://www.amazon.com/SABRENT-Thunderbolt-CFexpress-Reader-CR-T3CF/dp/B0BCP7KNBM

Sep 02, 2024 at 08:53 AM

sjms
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p.1 #7 · p.1 #7 · CFExpress Type-B Reader

i have the cables matter TB5 cable. as of now i too have i have TB3 reader. what we have here is the cart before the horse situation so i stand by and not worry about moving at light speed. it is fast enough till the next model of readers comes out.

OWC has a USB4(TB4) reader

https://www.owc.com/solutions/atlas-cfexpress-card-reader

Sep 02, 2024 at 09:04 AM

Abbott Schindl
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p.1 #8 · p.1 #8 · CFExpress Type-B Reader

I get the fastest transfer rates using an OWC Atlas FXR Thunderbolt CFexpress Type B Card Reader connected to a Thunderbolt 4 port. This reader has only a CFe Type B slot and I typically get >1.5 GB/s (that's GB, not Gb) transfers via TB4. If you've got a USB 3 or 4 port, the transfer rate will be slower. See, for example, this comparison article:
https://www.windowscentral.com/thunderbolt-4-usb4-usb

I also get good USB-C transfers with a ProGrade reader Eco-Scott mentioned.
Both readers have been totally reliable and consistent for the 1-3 years I've had them connected to various Intel and M2 Macs running several versions of macOS.

The only reader I've gotten abysmal transfer speeds from is this Delkin one:
https://www.bhphotovideo.com/c/product/1551387-REG/delkin_devices_ddreader_54_usb_3_1_gen_2.html
(I love their CFe cards, but wouldn't buy another of their readers).

For comparison, I tested the readers I own on a M2 MacBook Pro (TB4 ports) with a 512 GB Delkin Power Green CFe card using several commercial test suites. Myrepeatable results for ~200 GB of image transfers (45 mpxl Raw files) were:
..............................Transfer time......Transfer rate
OWC Atlas FXR...........123s..............1.56 GB/s
ProGrade CFe/SD........290s..............0.66 GB/s
Delkin...........................520s..............0.37 GB/s

Sep 02, 2024 at 12:10 PM

Flowernut
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p.1 #9 · p.1 #9 · CFExpress Type-B Reader

I guess the main reason for the speed difference in the prograde and owc is the difference between thunderbolt 4 and usb 3? My laptop does not support thunderbolt 4.

Sep 02, 2024 at 01:00 PM

Abbott Schindl
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p.1 #10 · p.1 #10 · CFExpress Type-B Reader

Flowernut wrote:
I guess the main reason for the speed difference in the prograde and owc is the difference between thunderbolt 4 and usb 3? My laptop does not support thunderbolt 4.

Probably. USB 3.x is quite a bit slower than TB3/4/USB4. Still, the USB 3 transfer speeds aren't slouches

Sep 02, 2024 at 01:32 PM

12bit35mm
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p.1 #11 · p.1 #11 · CFExpress Type-B Reader

Have been very happy with:

https://www.lexar.com/product/lexar-professional-cfexpress-type-b-sd-usb-3-2-gen-2-reader/

Sep 09, 2024 at 09:47 AM

sjms
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p.1 #12 · p.1 #12 · CFExpress Type-B Reader

Abbott Schindl wrote:
Probably. USB 3.x is quite a bit slower than TB3/4/USB4. Still, the USB 3 transfer speeds aren't slouches

pretty much it's what you plug it into and with what cable.

Sep 09, 2024 at 12:20 PM

sjms
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p.1 #13 · p.1 #13 · CFExpress Type-B Reader

12bit35mm wrote:
Have been very happy with:

https://www.lexar.com/product/lexar-professional-cfexpress-type-b-sd-usb-3-2-gen-2-reader/

it's good to be happy with what you use. i am happy with what i use also. i have a few different readers too.

Sep 09, 2024 at 12:22 PM

sjms
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p.1 #14 · p.1 #14 · CFExpress Type-B Reader

Abbott Schindl wrote:
I get the fastest transfer rates using an OWC Atlas FXR Thunderbolt CFexpress Type B Card Reader connected to a Thunderbolt 4 port. This reader has only a CFe Type B slot and I typically get >1.5 GB/s (that's GB, not Gb) transfers via TB4. If you've got a USB 3 or 4 port, the transfer rate will be slower. See, for example, this comparison article:
https://www.windowscentral.com/thunderbolt-4-usb4-usb

I also get good USB-C transfers with a ProGrade reader Eco-Scott mentioned.
Both readers have been totally reliable and consistent for the 1-3 years I've had them connected to various Intel and M2 Macs running...Show more →

you might want to read this in reference to the Delkin 54: https://www.delkindevices.com/product-help/

i average 835MB/s on it USB4 windows base and windows laptop reader in "fixed" mode

Sep 10, 2024 at 04:15 PM

jedibrain
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p.1 #15 · p.1 #15 · CFExpress Type-B Reader

Sashi wrote:
Just got a R5 Mark II and a SanDisk Extreme Pro CFExpress 512GB card. I took about 3K photos with the camera on a recent trip and it took about 3 hours to transfer the images from the camera to the computer (I used the USB-C) connection. Would like to know from members who have been using the CFE Type-B cards on what their recommendations for a good card reader are. I am on a Win 10 laptop (workstation) and have TB3 ports.

What kind of hard drive is in the computer? I think you'll have better results with a card reader for sure. But if there is a spinning disk in the computer it will be the bottleneck as it writes much more slowly than the memory card is capable of. If you have an SSD or NVME drive then the card reader will help speed things up.

Brian

Sep 13, 2024 at 11:26 AM

sjms
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p.1 #16 · p.1 #16 · CFExpress Type-B Reader

if its got a spinning HD its getting on in age and there is more inside that will slow things down compared to the past few years models.

Sep 13, 2024 at 11:57 AM

Sashi
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p.1 #17 · p.1 #17 · CFExpress Type-B Reader

jedibrain wrote:
What kind of hard drive is in the computer? I think you'll have better results with a card reader for sure. But if there is a spinning disk in the computer it will be the bottleneck as it writes much more slowly than the memory card is capable of. If you have an SSD or NVME drive then the card reader will help speed things up.

Brian

Brian

This was the speed to transfer to my RAID array attached to a server (so from my PC to the server to the RAID array through CAT-6E). I got the Sabrent TB3 card reader and it's multiple factors faster in copying over the data. I am in the process of building a TB3 enclosure with NVME drives to attach to my workstation so that I can store images there, process them locally and then back up to the RAID. My workflow and system are currently "work-in-process" as I am working through the combinations of what works best for my scenario,

Sep 13, 2024 at 11:57 AM

lsquare
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p.1 #18 · p.1 #18 · CFExpress Type-B Reader

Sep 13, 2024 at 04:18 PM

Sashi
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p.1 #19 · p.1 #19 · CFExpress Type-B Reader

lsquare wrote:
What was the transfer speed like? I thought the R5 II had a high-speed port.

What I faced is NOT a true representation of the transfer speeds through the USB-C port. As mentioned, I was transferring straight from the camera to a RAID array on another computer (computers connected through ethernet)

Sep 13, 2024 at 05:47 PM

sjms
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p.1 #20 · p.1 #20 · CFExpress Type-B Reader

well, there's a bit more pertinent information.

life’s little gives and takes along the way.

Sep 14, 2024 at 08:35 AM


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