Exascend Essential CFexpress B
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Exascend Essential CFexpress B 1TB: Tested on Animals

In my early days as a photographer, I purchased a reminiscence card for my Nikon D70 with – for the time – an enormous capability of 1GB. I didn’t actually care concerning the card’s pace again then, as a result of I used to be capturing different topics than wildlife. The worth was staggering. If I keep in mind accurately, I paid about $230 equal for the cardboard. At the moment, I’m reviewing a special type of card, one with a whopping 1 Terabyte capability: the Exascend Essential CFexpress B.

For context, this card has a thousand occasions the capability of my previous card. If the value was correspondingly increased, the worth of this card can be about $230,000. I might purchase a small condo right here in Prague for that value. Happily, the value of reminiscence has by no means been decrease. The Exascend Essential 1TB card continues to be dear at $750, but it surely additionally is available in 512 GB and 256 GB variations for $475 and $250 respectively.

Exascend Essential CFexpress B

CFexpress Kind B playing cards have skilled fairly a growth in the previous couple of years. The reason being that with the arrival of mirrorless digital cameras, the demand for knowledge switch speeds has elevated dramatically. There are few varieties of playing cards that may sustain with the quick steady capturing and 8K video of cameras just like the Nikon Z9 or Canon R5.

Much more than easy card capability, card pace is a very powerful metric these days. Nonetheless, it’s one factor to have the pace that the producer claims the cardboard achieves in managed lab situations, and fairly one other to have the pace that the cardboard achieves in real-world use. That’s why I took the Exascend Essential CFexpress B out and examined it correctly. How else however on animals?

Grey Heron_Nikon Z8
NIKON Z 8 + AF-S NIKKOR 500mm f/5.6E PF ED VR @ 500mm, ISO 2000, 1/1600, f/7.1

Exascend Essential CFexpress B 1TB claimed options

  • Learn Pace
    • Sequential: 1800 MB/s
    • Sustained: 1800 MB/s
  • Write Pace
    • Sequential: 1700 MB/s
    • Sustained: 1400 MB/s

To see how the declared and precise values differ, I subjected the aforementioned high-capacity card to a discipline experiment. To make the check extra legitimate, I additionally included a Nikon CFexpress Kind B 660GB card in my experiment. Each playing cards have related claimed learn and write speeds. Did each playing cards ship on their claims? You’ll discover out within the following checks.

Check Design

I performed the check utilizing a Nikon Z9 camera with a 50mm f/1.8 lens. I shot in lossless compressed RAW, 1/1000s, f/2.8, steady capturing on the highest fee of 20 FPS. I shot the check scene for 60 seconds. I did this on 5 totally different check scenes to reduce the measurement error and the impact of the scene on the file measurement (and thus the variety of photos taken).

For the video recording, I set the Nikon Z9 to its absolute restrict. Which means I recorded to N-RAW 12-bit (NEV) at 8.3K and 60fps. I recorded movies as much as about 2 minutes in size.

Nuthatch_Nikon Z8
NIKON Z 8 + AF-S NIKKOR 500mm f/5.6E PF ED VR @ 700mm, ISO 5000, 1/1000, f/8.0


1. Steady Capturing

In 60 seconds, the Exascend Essential 1TB card wrote a median of 885 frames. That averages out to 14.7 FPS over the course of a minute. With a median file measurement of 54.8MB, the camera was writing to the cardboard at 805.6MB/s on common.

The cardboard turned noticeably heat after a number of consecutive bursts (estimated temperature round 50°C / 120°F). Nonetheless, the elevated temperature didn’t have an effect on the body fee. All 5 checks of various scenes confirmed comparable values.

For all 5 checks, the body fee was highest in the course of the first 3 seconds. After that, the pace slowed right down to about 14-15 FPS. The camera maintained this pace all through the complete recording interval. Nonetheless, the recording pace was not fully fixed. Based mostly on the audio suggestions from the Z9, there was occasional rushing up and slowing down.

And the way did the Exascend card evaluate to the Nikon benchmark? Though the claimed pace of the Nikon card is 200MB/s slower than the Exascend, it seems that issues is likely to be slightly totally different in the true world. In the identical check, the Nikon Z9 was in a position to write a median of 938 frames per second to the cardboard over 60 seconds. This corresponds to a body fee of 15.6 fps (854.9 MB/s) – barely increased than the Exascend might handle.

Magpie_Nikon Z8
NIKON Z 8 + AF-S NIKKOR 500mm f/5.6E PF ED VR @ 500mm, ISO 1800, 1/250, f/5.6

2. Video Recording

In the case of 8K 60p Uncooked video, the result’s that each playing cards handed the check. And that’s actually all there may be to it. As a result of as quickly because the camera hundreds the cardboard and acknowledges that its write pace is appropriate for recording at 8.3K/60fps and N-RAW 12-bit (NEV), it merely simply begins recording. In case you put a slower card within the slot, the camera stops recording after a few second.

The quantity of information is big with these settings. A video of simply over a minute takes up about 45 GB of reminiscence! I’ve recorded movies as much as about 2 minutes and had no issues with the Exascend card or with the Nikon-brand card. In fact, with such a big knowledge stream, the cardboard did get fairly heat, however to not the purpose the place the Nikon Z9 alerted me.

Curiously, the primary time I skilled the ” heat card” warning was once I was working with the Nikon Z8. But it surely was actually sizzling that day, and I used to be holding the camera for a number of hours in a row. So the cooling choices have been very restricted. There was lots to shoot and the camera was actually sticking to my hand. Whether or not it was the camera, the cardboard, or simply the recent climate that was in charge, I’ll undoubtedly be being attentive to this phenomenon sooner or later.

Exascend USB 3.2 Gen 2 Twin-Slot Reader

It’s one factor to write down pictures and movies to the cardboard. It’s one other to get the info from the cardboard to your laptop. Whereas I used to be testing the Exascend Essential card, I needed to additionally see how rapidly I might switch the info to my laptop utilizing a card reader from the identical producer.

The Exascend USB 3.2 Gen 2 Twin-Slot Reader has an aluminum case and helps each CFexpress kind B playing cards and SD UHS-I playing cards. (A pleasant bonus was my discovery that the reader additionally helps SD UHS-II playing cards, regardless of what the function listing says.) The producer guarantees a switch pace of 10,000Mb/s.

Exascend Reader

For comparability, I used my very own Delkin Units DDREADER-54. My model solely helps CFexpress kind B playing cards, though there may be additionally a twin card variation. Just like the Exascend card reader, the Delkin additionally additionally claims a switch pace of 10,000Mb/s.

I’m conscious that there are a number of variables that go right into a reader’s switch pace. The pc you might be utilizing performs a giant position. In my case, I used my MSI Creator Z16 laptop computer (Intel Core i9, Geforce RTX 3060, USB3.2 Gen2 ports). I used the EaseUS DiskMark utility to check the pace. I took 5 measurements in complete whereas importing pictures, then averaged the outcomes.

With the identical Exascend CFExpress card that I’ve been reviewing, the Exascend reader achieved speeds of 842.6 MB for sequential learn, and 1061.5 MB for sequential write. Is that good or unhealthy? If I used to be anticipating speeds of 10,000 MB/s, this is able to be a transparent disappointment. However the satan is within the particulars, and these readers don’t declare to have 10,000 MB/s, however 10,000 Mb/s! It’s the distinction between “B” and “b.” You may convert from MB to Mb by multiplying by eight. At that time, we’re at a write pace of 8,492 Mb/s. That’s a lot nearer to the claimed worth of 10,000 Mb/s.

And what concerning the comparability with the Delkin Units Reader – 54? When examined in the identical method, it achieved speeds of 791.3MB for sequential learn, and 910.7MB for sequential write. So the pace distinction in my check is 6.5% for studying and 16.5% for writing, each in favor of the Exascend card reader.

Common Chaffinch_Nikon Z8
NIKON Z 8 + AF-S NIKKOR 500mm f/5.6E PF ED VR @ 500mm, ISO 5600, 1/400, f/5.6


Quick steady capturing with high-resolution sensors, or recording high-quality 8K video, produces knowledge flows corresponding to the Amazon in the course of the wet season! Happily, CFexpress kind B reminiscence playing cards aren’t as unique as they have been just some years in the past. Their pace has satisfied an rising variety of camera producers to order at the very least one slot of their units for them.

As the recognition of those playing cards grows, we are able to anticipate increasingly more card producers to enter these waters. The logical end result ought to be a cheaper price for these notoriously costly reminiscence playing cards. The reality is that CFexpress playing cards can now be bought considerably cheaper throughout numerous low cost promotions. Nonetheless, in order for you a extremely quick card from a longtime model, be ready to make a substantial funding, particularly for the bigger capability fashions like this one.

An alternate could also be playing cards from lesser-known producers, Exascend included. Their costs are sometimes fairly affordable and the specs aren’t behind the massive gamers, though discipline checks are extra necessary than specs. My discipline check of the Exascend Essential 1TB card exhibits that it is vitally near the Nikon-brand CFExpress playing cards in write pace. That stated, it nonetheless got here up wanting the Z9’s theoretical most 20 FPS fee, averaging about 15 FPS over 60 seconds as an alternative. (For the primary few seconds of the burst, it did hit shut to twenty FPS, and that’s sufficient for a lot of use instances).

Common Frog_Nikon Z8
NIKON Z 8 + 10.5mm f/2.8G @ 10.5mm, ISO 1400, 1/40, f/18.0

As for the Exascend USB 3.2 Gen 2 Twin-Slot Reader, it carried out as anticipated, and truly higher than my comparable Delkin card reader. It didn’t fairly attain the utmost claimed pace of 10,000 Mb/s, but it surely was shut, averaging about 8,500 Mb/s.

I hope you discovered this real-life reminiscence card check helpful. Personally, it has impressed me to do an identical check for a bigger variety of presently out there playing cards and to create a abstract desk for you sooner or later, which I wish to preserve up to date. However that’s for one more time.

Grey Heron_Nikon Z8_02
NIKON Z 8 + AF-S NIKKOR 500mm f/5.6E PF ED VR @ 500mm, ISO 400, 1/1000, f/5.6

If you need to buy a examined card or reader, we’d be comfortable in the event you would use one of many hyperlinks under to thank Photography Life for our work:

  • Exascend Essential 1TB CFexpress Card Kind B at B&H and Amazon.
  • Exascend USB 3.2 Gen 2 Twin-Slot Reader at Amazon.

Let me know within the feedback part of this text in case you are inquisitive about something concerning the testing methodology or the reminiscence playing cards examined.

#Exascend #Essential #CFexpress #1TB #Tested #Animals

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