Samsung EVO Plus 128GB microSDXC Card Review – Performance and Speed


ATTO Disk Benchmark is a relatively easy-to-use benchmark tool. ATTO Disk Benchmark relies on testing different file sizes with highly compressible data.  Although this is not the best representation of media files which are, for the most part, highly incompressible, it is a good start and is still the main mechanism most manufacturers use to determine their product specifications. In our testing, we have left the benchmark settings to default.

Samsung 128GB EVO MicroSD ATTO

ATTO Disk benchmark displays performance results that match that of listed specifications, 98MB/s read and 89MB/s write.


Crystal Disk Mark is visually straightforward and is used for measuring the speeds at which your storage device reads and writes with random, mostly incompressible, data. Random data is more consistent with everyday use of a computer, such as transferring videos, pictures and music. Thus, this benchmark will be a better representation of speeds to expect on a video or stills camera over ATTO.

Samsung 128GB EVO Plus MicroSD CDM

Understand that CrystalDisk Benchmark is transferring samples that are highly incompressible, results of 97MB/s read and 83MB/s write are still excellent returns.


Anvil’s Storage Utilities is the best software program available for benchmarking flash media.  Not only does it give an accurate look at transfer speeds and throughput, but also, it goes even further by identifying file sizes, disk access times, as well as system and device identification. It even has many extra features such as endurance torture testing and a TRIM button feature to manually trigger TRIM on supported devices.

Samsung 128GB EVO Plus MicroSD ANVIL

Anvil confirms pretty much everything we have already seen.  If you look at the drive identification on the bottom right, you will see that it shows a Lexar pro LRW 400, this being the adapter we use to connect the Samsung card to the PC.


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    These evo/+ cards have pretty impressive random performance for sd card 🙂

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    I haw 64 gb version its slow when i write film on, its speed sometimes is half les than adversired its formated as exfat and it has unalocades space. dont haw even usb 2 speed.
    rememember to not farmat or write os or it will be fucked. sandisk kingston extreme should be beter whit life time waranty
    I hope i can write after time rasbery on it

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    Just got this; evo+[U3] 128gb. There’s SO many fakes goin around online/on ebay, they’re hard to avoid. Thought i got one of the better fakes (not the “made in China” w/black edges). Tested with sdtestw or watever – confirmed it was 128gb after like 3 or 4 hours ?.
    THEN i was getting slow read/write speeds & thought maybe it was just an off brand- made to look like samsung. But i tried it on a newer laptop, and got 60&77MB/s sustained transfer speeds using the adapter to transfer an 800MB movie on & off. Says made in Philippines, but… It’s in the right direction. All text & colors look good. I guess it’s legit

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