A look at in-camera performance between all the most popular SD memory cards in the Canon M6 mark II.
Use this guide to find the best memory cards for the Canon M6 II.
Also, check out my list of best accessories for the EOS M6 Mark II.
Top 5 Recommended Memory Cards
The Canon M6 II supports UHS-II memory cards, so if you want the fastest memory cards available you will have to use UHS-II.
Here the top 5 recommended cards with their in-camera speeds.
|Name||Canon M6 Mark II Speed||Price|
|Sony G Tough||108.37||Amazon|
|Delkin Power v90||108.28||Amazon|
|Toshiba Exceria Pro||106.88||Amazon|
|Sandisk Extreme Pro 300MB/s||106.80||Amazon|
These are the best UHS-II cards and top brands right now. I left the Lexar 2000x off the list even though it was the fastest card. I’m a little concerned with them as a brand right now based on reviews I’m seeing and haven’t been recommending them lately. Most bad reviews for the Delkin cards are coming from Panasonic shooters. Their cameras hate most brands of cards and Panasonic has yet to expand the memory card compatibility of the firmware. Delkin is safe to use in Canon cameras, however be careful where you buy Delkin, it looks like there are some counterfeit cards in the wild right now
Top 5 Best Cards For Casual Photography
If you’re don’t feel like you need the top speed bleeding-edge performance of UHS-II memory cards and are just shooting casually around town, then here are a few cards for you that have been testing well and are very affordable.
This is personally what I would buy. A few are UHS-II rated and there are some UHS-I cards as well. UHS-II cards will still give you very fast transfer speeds to your computer if you have a UHS-II reader, which may or may not be important to you. Personally for casually shooting, waiting an extra minute for my files to transfer with a UHS-I card is no big deal.
|Name||Canon M6 II Speed||Check Prices|
|Delkin Prime v60||76.09||Amazon|
|Sony M Tough||74.72||Amazon|
|Sony E||75 (rated, untested)||Amazon|
|Sandisk Extreme Pro 170||60.68||Amazon|
In-Camera Speed Test
As always, I test every card that’s available at the time in the camera. I do this by shooting a few continuous burst sequences until the buffer is full to check for any issues, then I measure how much time it takes the buffer to clear against how much data was written.
USB 3.0 speeds are taken with a Lexar reader. Although, I have a new USB-C reader that is running a bit faster with most cards. So if you have a USB-C computer, be sure to grab one of those. I’m using this Sandisk reader seen on Amazon.
This is a ton of work as you can imagine, and I very much appreciate your stopping by and checking out this article and you’re always welcome to share this data as long as you link back to it.
|Memory Card||Speed Class||Canon M6 II Write||USB Read||USB Write|
|Sandisk Extreme Pro 300MB/s||UHS-II||106.80||258.5||190.5|
|Toshiba Exceria Pro||UHS-II||106.88||263.6||223.8|
|Sony G Tough*||UHS-II||108.37||256.8||201.0|
|Delkin Power v90||UHS-II||108.28||257.6||191.0|
|Delkin Prime v60||UHS-II||76.09||252.8||89.1|
|Fujifilm Elite II||UHS-II||106.61||259.3||168.4|
|Hoodman Steel 2000x||UHS-II||104.56||268.7||183.9|
|Hoodman Steel 1500x*||UHS-II||76.26||258.1||169.2|
|Amplim 1900x V60*||UHS-II||75.84||249.8||104.5|
|Angel Bird V90*||UHS-II||106.82||256.6||211.1|
|Angel Bird V60*||UHS-II||74.54||166.9||80.2|
|FreeTail Evoke Pro V60*||UHS-II||74.57||238.5||102.8|
|Sandisk Extreme Pro 170MB/s||UHS-I||60.68||99.2||88.3|
|Sandisk Extreme Plus||UHS-I||59.87||99.3||88.2|
|Sandisk Extreme U3||UHS-I||43.91||99.3||56.8|
|Sandisk Ultra U1||UHS-I||24.66||99.5||34.3|
|Kingston Canvas React A1 U3*||UHS-I||55.91||99.6||82.5|
|Kingston Canvas Go! U3*||UHS-I||53.40||99.6||74.0|
|Lexar 633x U1||UHS-I||43.57||95.0||54.6|
|Sony Professional U3*||UHS-I||61.69||98.5||60.2|
|Sony U3 94MB/s||UHS-I||49.38||96.7||57.5|
|Sony U3 95MB/s||UHS-I||59.71||96.6||85.4|
|PNY Elite Performance U3||UHS-I||51.18||96.7||66.9|
|Delkin Advantage U3*||UHS-I||57.52||99.6||78.8|
|Toshiba Exceria Pro U3*||UHS-I||57.00||97.8||74.7|
|Toshiba Exceria U3*||UHS-I||24.59||97.2||29.9|
|Verbatim Pro+ U3*||UHS-I||55.64||98.5||83.7|
|Verbatim Pro U3*||UHS-I||50.19||96.6||68.0|
|Amplim 667x A1 V30*||UHS-I||35.15||99.6||52.2|
Canon M6 Mark II Camera Specs And Buffer Questions
|Sensor: 32.5MP APS-C CMOS Sensor|
Processor: DIGIC 8 Image Processor
SD Cards Slot: Single Slot UHS-II
Continuous Burst: 14 fps
Video: 4K (3840 x 2160) at 25p/29.97p
How Big Is The Buffer? 850MB est.
How Many Shots To Fill Buffer? 26
What Size Are The Raw Files: 35MB
How Long To Clear Buffer? 6sec
Avoiding Counterfeit Cards
You’ve probably witnessed the big scare photography sites and YouTubers keep pushing on people about having a single card slot. “Cards, fail all the time.” Well not really, they only trying to scare you into buying a Sony A7III instead of an EOS R or Nikon Z6. It’s the weirdest thing seeing so many people and big review sites shill for Sony now. I use to think I was crazy, but when anyone is trying to sell you a Sony A6400 camera, there is not a word about a single card slot compared to the XT3.
Anyway, what’s happening is lot of people are ending up with counterfeit memory cards. It’s been a serious problem especially for people that like to shop at Ebay. Ironically a lot of the big influencers crying about failed cards, are also big Ebay shoppers, but you can get counterfeit cards from even Amazon from time to time.
You can easily avoid counterfeit cards right now buy getting Sony Tough cards ( I haven’t seen anyone hack those yet ), or by always making sure you buy from a trusted dealer.
Once you get your cards, max out its capacity by recording video, shooting (with the camera in electronic shutter so you don’t wear out the shutter) or transferring files from your computer. If the card makes it close to its rated size you’re good to go!
Best SD Memory Cards Canon M6 Mark II Conclusions
The Canon M6 II is a powerful little beast of a camera and I’m very excited to see Canon really supporting their APS-C line with such amazing specs and the solid build quality.
Because the camera takes UHS-II memory cards, you can turn it into a high-performance continuous shooting machine, or save some money by using a slower v60 UHS-II cards or even UHS-I cards. The choice is yours.
Regarding size, you’ll probably want no smaller than 64GB, but a lot of people are going with 128GB cards now.
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