Sd cards evo what does it mean. Express review of the Samsung EVO Plus series of microSD memory cards. Dependence of SD card speed on its formatting

MicroSD memory cards are still in use and are needed by a large number of people. Smartphones, tablets, action cameras, photo and video cameras, you can find at least one device with microSD support in your home. Today I will briefly tell you about the inexpensive and fast Samsung EVO Plus cards. They appeared on the market recently (new G series 2017). They can be bought in many stores in Russia. There are options with capacities of 32, 64, 128 and 256 GB (but the latter will not be included in the review). Those who want to save money can always buy these cards in China with delivery in Russia. In China, we mean large stores that serve the foreign market, including Russia, these cards have already become bestsellers. A-brand, low cost and high speed are the key to success.

Specifications

* : 1 GB = 1,000,000,000 bytes, 1 GB = 1,073,741,824, 1 MB = 1,000,000 bytes, 1 MB = 1,048,576 bytes.

Samsung made a note on its website: " Feature: The memory card is not intended for use in tasks involving intensive data recording (for example: DVRs or video surveillance systems)". I don’t know what this is connected with, because according to the stated reliability, for example, in a DVR with a flow of 20 Mbit/s, a Samsung EVO Plus 128Gb card can last up to 15 years with round-the-clock use.

Equipment and appearance

Cards are supplied in cardboard packaging.

The packaging has a Samsung hologram with a washable protective layer. Most likely, like some other manufacturers, the code under the protective layer is intended to verify the authenticity of the product (enter it on a special website and get information about how many times this code has already been checked). I couldn't find the verification page on Samsung's Chinese website.

The back of the package contains contact and technical information. 4 types of protection are declared:

• The cards have IEC 60529 and IPX7 waterproof housing. Withstands immersion for 72 hours in sea water.
• Cards can operate in extreme temperatures. Operating temperatures from -25 °C to 85 °C.
• Cards can be kept in airport X-ray machines, up to 50 X-rays.
• Cards may be exposed to electromagnetic waves of up to 15,000 gauss.

The appearance of the cards is nothing special.

Maps made in the Philippines.

Speed ​​testing

The declared UHS speed classes are U1 for a card with a capacity of 32 GB, U3 for cards with a capacity of 64 and 128 GB. In addition to classes, numerical speed characteristics are declared:

• 32 GB: 90.6 / 19.1 MB/s
• 64 GB: 95.4 / 57.2 MB/s
• 128 GB: 95.4 / 85.8 MB/s

For testing, I will use the combat and popular Transcend TS-RDF5 card reader with a USB 3.0 interface. It was made on a Genesys Logic GL3233 controller. The latest TS3A firmware is installed. The stated maximum read speed is 90 MB/s, and the write speed is 60 MB/s. It has been serving me for several years now, and I haven’t had a faster card reader yet. Even a Realtek card reader in a laptop that operates via the PCI Express interface cannot compete with it. The characteristics of the Transcend TS-RDF5 are slightly lower than the stated capabilities of the cards, so in some tests the speed may be limited by the card reader.

From the packaging, the 64GB and 128GB cards have the exFAT file system, while the 32GB has FAT32. We format all cards into the exFAT file system. The capacity of all cards corresponds to the declared one.

The results are impressive for all three cards. The linear reading speed of all three cards was limited by the capabilities of the card reader and amounted to 87 MB/s. The linear write speed for a 32 GB card significantly exceeds that stated by the manufacturer. The linear writing speed of the 128 GB card was limited by the capabilities of the card reader and amounted to 82 MB/s. Random reading/writing of 4 KB blocks without a queue in one thread is at the same level for all cards, and this speed corresponds to the top UHS-I solutions on the market.

AIDA64

Linear Read and Linear Write tests were used from the AIDA64 package. These tests run at a level below the file system throughout the entire capacity and demonstrate the dependence of the speed characteristics of the cards on the position of the data on the card itself.

Reading

The write speed is uniform throughout the entire volume of all three cards. 32 GB - 34 MB/s, 64 GB - 66 MB/s, 128 GB - 84 MB/s (card reader limit).

Speed ​​of working with real files

Three files were created on the disk with sizes: 28 GB, 55 GB and 110 GB. Using Explorer, these files were copied to the cards and then back.

Record

The reading speed is uniform for all three cards and is at the same level.

Conclusion

Samsung EVO Plus cards are really very fast. They demonstrate both high linear speed and high random access speed. In this case, the linear speed is uniform throughout the entire tank. The cards in the series essentially differ in capacity and linear recording speed (the larger the capacity, the higher the speed). The random access speed of the cards is identical. Even the lowest card is easily suitable for most tasks (including recording 4K video with a stream of up to 240 Mbps), not to mention older models. Its characteristics are higher than stated and with its price it simply has no competitors on the market. Considering the low cost of the cards and the authority of Samsung, these cards can be safely recommended for purchase.

Maps for review provided by the store TOMTOP. At the time of publication of the review, a 32 GB card could be purchased for 13,99$ , 64 GB for

Samsung decided to reconsider its range of memory cards; today the company only offers microSD cards, which can be converted to SD using an adapter. We have received three new models of memory cards; below we will present the test results.

Last summer we already tested the card, which showed convincing results. Now Samsung has decided to carry out a small rebranding and replaced the “+” sign in the name with the inscription “plus”. Samsung also decided to simplify the range.

In the future, Samsung will no longer produce separate SD cards. Instead, the company will offer microSD cards, but complete with an adapter. Those users who need an SD card can purchase the microSD variant with an adapter, and they will not notice any differences in practice. Meanwhile, if you upgrade your laptop to a version with a microSD slot, you will still be able to use the card. The card can also be moved, for example, from a digital camera to a smartphone.

Among the target scenarios for the new memory cards are action cameras and drones. With the increasing penetration of 4K video, storage speed requirements are growing faster than many users expect. In addition, laptops are increasingly equipped with memory card slots, especially in the ultra-compact segment. If manufacturers install a memory card slot, it usually only supports the microSD format.

Technically, there are no major changes compared to last year's 256 GB model (MB-MC256DA). Samsung is again relying on 48-layer V-NAND memory, which is used in, for example, providing not only good performance but also high reliability. As with last year's model, the MB-MC256GA card supports the U3 standard, which guarantees a minimum write speed of 30 MB/s.

Samsung promises resistance to adverse environmental conditions. According to Samsung, the new Evo Plus cards can withstand up to 72 hours in salt water (IPX7 certified), and operate in a temperature range of -25°C to 85°C. Cards are not affected by magnetic fields and x-rays. The latter is important for users who fly frequently.

Performance

Last year 256GB MicroSD card (MB-MC256DA). The new models rely on the same hardware platform, so we weren't surprised by the same strong performance.

Tests - Samsung EVO Plus 256 GB (MB-MC256GA)

Tests - Samsung EVO Plus 128 GB (MB-MC128GA)

Tests - Samsung EVO Plus 64 GB (MB-MC64GA)

In our QuickBench and Aja System Test tests, the memory cards performed well. However, considering Samsung's stated characteristics, they did not surprise us.

For 256- and 128-GB, the read speed was up to 92 MB/s, the write speed was up to 61 and 58 MB/s, respectively. The 64 GB has slightly lower performance: the read speed is the same 92 MB/s, but the write speed is only up to 53 MB/s.

In the QuickBench test, memory cards also show a high level of performance; they cope well even with small files.

Conclusion

Advantages of Samsung Evo Plus (2017) MicroSD:

• High performance
• Uses high quality flash memory

Disadvantages of Samsung Evo Plus (2017) MicroSD:

• High price
• Does not support UHS II standard

“Can you,” continued Hermann, “assign me these three correct cards?”
A.S. Pushkin "The Queen of Spades"

I ordered a couple of Evo+ SD cards from jd - 32 and 64Gb. And just almost, but not quite the same for 32, I bought a year ago offline (though twice as expensive:(- I needed it urgently). And I decided to check
1. Which formatting should I prefer? It turned out that the difference is quite noticeable.
2. Is there a significant difference between the almost identical Samsung 32 Evo+ cards from offline and from jd?
3. Samsung Evo+ 32 and 64 gig differ in speed class, but is this visible in reality?

A bonus was greetings from Russian customs. Nothing special, but this is the first time I've seen one like this. I demonstrate so that people don’t grab their hearts when receiving it :)

Let's start with the most interesting, leave the packaging, etc. for another time.

Dependence of SD card speed on its formatting

The 64 Gb card came in exFAT format with a 128K cluster. The captain reminds how to find out these details. It can be seen that the 128K cluster is only an approximate figure.


In FAT32, Windows does not want to format media larger than 32Gb, but there are other programs; I had HPUSBDisk at hand. Actually, I keep it for perversions like formatting flash drives in NTFS, but we won’t use it for NTFS today. We'll make do with FAT32 and exFAT.

So, for a 64Gb card we have


I would say that in terms of speed, FAT32 and exFAT with an equal cluster size show identical results. But as the cluster size increases (far right), the speeds do not increase much, but they do increase. Not the sequential ones, which are about copying large chunks. And about those with random access, when the application on the phone writes small files. I'm usually more interested in the bottom line than the top line. I did not see any freezes or freezes due to insufficient numbers in the top line. But at the bottom it’s easy.

Note Yes, the captain testifies that all these numbers make sense rather in a relative sense. This is exactly our case - everything is the same, except for the map itself. Immediately before the test formatted.

Let's check how it is on a 32Gb card from the same jd.


Here exFAT also shows a slight advantage over FAT32 on a 32K cluster. But the winner is the same - exFAT with a 128K cluster. By the way, this is NOT the default for a card of this size in Windows. Default - 32K

IMHO if the device understands exFAT (and look for those who don’t today), then use it. The default cluster size is a good choice. But you can do it a little faster.

32 and 64Gb for Evo+ - difference in speed

I don’t see any point in duplicating the pictures just given. There is no difference in reading speed. But in terms of recording speed - from 2.5 to 10 times. It’s not very clear why there is such a monstrous drop in speed when writing to one stream. But this does not change the essence of the matter.

For reading - no difference. For recording, a 32Gb card is many times slower than a 64Gb card.

Note I tested it with other utilities, the essence is the same. I don't see the point in cluttering up the review.

The difference between an offline and online card

As I already mentioned, earlier I urgently needed a card, I bought cards from jd offline for two prices. I was also looking for a cheaper place...
On the left is a map from offline, on the right - from jd/ It can be seen that they have a different model name - Evo Plus and Evo +
And the model number is D and G on the end.


But the speeds are no different (both cards are in exFAT 128K cluster)

There is only one reason to overpay offline - you need it yesterday. That is, you pay for something you didn’t take care of in advance. Not even a guarantee. Although IMHO the guarantee costs approximately 10% of the product and definitely no more than 20%.

Hello from customs

I was handed a 32 Gb card in this form, with a stack of documents from customs attached.


I must say that even though I am a law-abiding person, I try not to burden people in boots during their official hours at all with my presence. I started reading. It turned out - several sheets of photographs and this is the protocol for opening the parcel. (I erased personal information)

Additional Information

It looks dangerous, but it's actually great. In the column about detected signs of offenses there is a dash. But if they found it, they would definitely explain that bathhouse is a pronoun.

Delivery

Well, so as not to get up twice - two absolutely identical parcels arrived at completely different times.
32 GB Ordered July 04, 2018, shipped July 08, received August 06. Full track
64 GB Ordered July 20, 2018, shipped July 20, received August 7. Full track I'm planning to buy +3 Add to favorites I liked the review +45 +58

I decided to buy an EVO+ card here in reserve. Found it sold with the lowest price tag on Ali. Sold new, not many sales, but the photos are correct and the price tag is realistic. Many new ones are sold with dumping, so I decided to take a risk.

After 20 days a small package arrived with a track. When I pulled out the package with the card, I was immediately unpleasantly surprised by the absence of hieroglyphs on the front side. They were in the seller’s photo, and why write everything in English on the packaging of cards for the Chinese market? However, the holographic sticker with the starjade security code was present and inspired hope.

I scraped off the protective layer, entered the number on the starjade.cn website and received a window with hieroglyphs in response. Google translator wrote that everything is OK and the product is original. Just in case, I punched again and other hieroglyphs came out, indicating that the product had already been tested - at such and such a time.
And finally I took the card out of the blister and took a closer look...

And here it’s immediately clear that this is some kind of crap. There is no signature rough paint job, and the paint itself is of low quality and has defects. The ends of the card are black, not white, made in taiwan, etc.

To complete the picture, I decided to run tests in USB3.0...
CrystalDiskMark showed what was expected.

Here is h2testw - it’s already pretty upsetting...

And SD Insight generally called the card disabled.

In general, the main conclusion is Starjade security stickers with a scratch code do not protect against counterfeiting at all.

But how do they make it so that the code passes verification? At first I thought that maybe the card in the original packaging had been replaced, but on an industrial scale this is difficult, and where to put the original cards without packaging? Again, this does not explain the English front side. So it’s more likely that these stickers leaked from starjade, or that cunning counterfeiters have learned the algorithm for generating the serial number checksum and can now generate valid serial numbers for stickers themselves. So be more careful when choosing a seller and do not rely too much on security codes...

By the way, what is the best way to make a refund, based on a counterfeit or a defect? For some reason I don’t like this valid security code - if it’s fake, Alisha can take the seller’s side...

UPD: After 30 days of butting heads with the seller, Ali finally decided to return the money without returning the goods. And it’s good that I didn’t indicate counterfeit as the reason for the dispute - it would hardly be possible to prove this, because the security code is also checked on the website support-cn.samsung.com

Planning to buy +1 Add to favorites I liked the review +32 +49