Solid-state drives with the new 3D NAND memory have already been tested by CRUCIAL and ADATA. But SAMSUNG was one of the first to use this technology, and it would be wrong to get a complete picture of the new type of memory without studying the 850 EVO series. We will also study it using the 500 GB version as an example. This series turned out to be interesting, the company updated the series without noisy announcements. Some time on the shelves Russian stores there were two versions available, now everything has stabilized, only the current revision is presented in official retail.

In it, instead of the 32-layer 3D NAND of the second generation, they began to use 48-layer third-generation chips. The density of cells has increased, and in the future this paves the way for high-capacity SSDs. The main change was the new technical process, while Samsung assures that the characteristics have not changed, for users this upgrade could go unnoticed. In reality, we see absolutely new model SSD, but with the same name, retaining only the MGX controller. For us, this test will also be interesting by looking at the solution of a company that uses its own chips, there are few such manufacturers on the market. We will compare its work with the Crucial CT525MX300SSD1 drive.

Samsung 850 EVO review

Equipment

One of the differences was the updated packaging. The design of the design and the set of information have changed. Now the inscription flaunts on the box: "V-NAND SSD 850 EVO".

The bundle is modest, it includes only a set of documentation hidden in an envelope. There is no usual frame for increasing the thickness of the case.

Appearance

The case design has not changed. Samsung 850 EVO is made in a black case with a minimalist design. With a thickness of 7 mm, these drives can be used to upgrade a laptop.

By the way, one of the improvements was a reduction in power consumption, in the case of desktop systems this is not critical, but for laptops it can extend battery life.

Instead of a decorative sticker, there is a silver Samsung logo on the lid. On the reverse side there is a sticker with technical data.

There are differences in the labeling, updated drives come with numbers: S2P, S2R or S2S.

The case is fixed with screws. Disassembly will damage the sticker.

Filling

The reduced dimensions of the printed circuit board of the Samsung 850 EVO attract attention. It does not exceed 2-3 cm in length. The thermal interface is not used for contact with the body.

Soldered two third-generation TLC 3D V-NAND memory chips with 256-gigabit cores. Half the number of memory chips is now used to obtain the required volume. Reducing the degree of parallelism reduces the load on the controller. If earlier the older MEX processor (850 Pro) was used for the 1TB and 2TB versions, now the 1TB comes with a dual-core MGX processor borrowed from the first revision.

Also, new chips no longer allow you to build 120 GB solid state drives, the minimum version comes with 256 GB. Updated DRAM buffer, LPDDR3 instead of LPDDR2 SDRAM. For every 1 GB, there is 1 MB of buffer capacity. 6 GB SLC cache, the younger version has 3 GB.

Tests Samsung 850 EVO

Model	Data
Frame	Aerocool DreamBox
Motherboard	ASUS MAXIMUS VIII RANGER
CPU	Intel Core i7-6700K Skylake (oc - 4700 MHz)
CPU cooler	DeepCool Captain 240 EX
video card	Palit GTX1080 Super JetStream
RAM	Kingston HyperX Fury DDR4 32GB (oc - 2700 MHz)
HDD	Intel SSD 530 240 GB
Hard disk 2	Crucial MX300 750 GB
Hard disk 2	Kingston SSDNow UV400 480 GB
Power Supply	Zalman ZM850-EBT
Audio	Creative Sound BlasterX G5
Monitor	iiyama ProLite E2773HDS
Monitor 2	Philips 242G5DJEB
mouse

The market for solid state drives (SSDs) is at its peak right now. Per Last year there are so many manufacturers that it is not easy to figure it out. On the one hand, this is good, because. competition is growing, and therefore prices are falling. And so it happened - prices fell seriously. But for the end user, in addition to the price, the quality of the purchased products is no less important. And it is for those who appreciate the quality of reasonable price, Samsung released SSD drive Samsung 850 120Gb MZ-7LN120BW. Moreover, the first time I saw this drive, I thought it was the new 850 EVO series. But later I did not find the EVO set-top box, which means that we have a new representative of budget drives from Samsung. This model is produced only with a capacity of 120 GB. on the this moment the EVO and PRO series have a minimum storage capacity of 250 GB. Thus, Samsung wants to take part of the market for low-cost SSD drives for itself, although it has not previously sought to enter the budget segment. Samsung says that this drive refers to MLC drives, but in fact it is not. At the moment, on the official website of the manufacturer, the page with the description of the drive displays the inscription - Page not found.

Personally, I consider Samsung drives to be the best on the market. the company itself develops and manufactures not only memory for SSD drives, but also controllers. Those. Samsung SSDs are end products created in-house, without the involvement of third-party development companies.

None of the manufacturers of solid state drives anymore have memory and controller production at the same time.

If you want an SSD with incredible speed and endurance, the Samsung SSD 850 PRO gives you both and more. Powered by Samsung V-NAND, it’s designed to handle heavy workloads on workstations and high-end computers with IT heavy users in mind. Plus, it boasts an industry leading 10-year limited warranty for client PCs.

It all adds up to performance

The 850 PRO delivers a new level of performance beyond your expectations for sequential reads of up to 550 MB/s and random reads up to 100,000 IOPS. Plus, achieve over 2x* faster performance with RAPID mode enabled by Magician software to processes data on a system level using DRAM as cache. *These results were determined by PCMARK® 7 testing with scores of 7,864 and 20,172 with RAPID mode off and on using a 4TB drive.

Elevate the endurance level

With heavy workloads, endurance is everything. The 850 PRO is a game changer, withstanding up to 600 terabytes written (TBW) and backed by a 10-year limited warranty.* Dynamic Thermal Guard protects it from overheating while an AES 256-bit hardware-based encryption engine secures your data and is compliant with TCG™ Opal standards and IEEE® 1667 protocol. *10-year warranty or TBW (256 GB: 150 TBW, 512 GB/ 1 TB: 300 TBW, 2 TB: 450 TBW, 4 TB: 600 TBW), whichever comes first.

Seamless, synergistic integration

Leverage our world-class integration expertise. Samsung designs every component of the SSD in house, including the V-NAND flash memory, controller, DRAM and firmware - all fine-tuned to work in perfect synergy.

The South Korean manufacturer began “experiments” with three-bit TLC memory on customers back in 2013. I consider the previous generation - 840 EVO - successful, although there was a lot of controversy about the reliability of these SSDs, because the number of cell rewriting cycles in TLC is less than that of MLC / SLC. In terms of speed characteristics, this type of memory is also inferior, since eight voltage levels are used to store three bits of information, which take longer to remove. At MLC - twice less. This increases the wear of the cell. With the introduction of new technological standards, the problem is only exacerbated, since a decrease in the cell size (thinning of the dielectric layer) leads to charge leakage from the floating gate.

The application of the 3D V-NAND structure solves both problems. First, layered TLC packaging takes up less space than, for example, planar MLC. Bottom line: there is no point in chasing a decrease in the technical process. The memory in the 850 PRO and 850 EVO lines is manufactured according to 40nm "prehistoric" standards, which greatly increases its reliability. Samsung claims that the probability of errors when reading data from TLC V-NAND is 10 times lower than that of a “ordinary” planar TLC. Words are backed by deeds: all drives in the 850 EVO series are covered by a 5-year warranty. Competitors offer mostly 3 years.

Secondly, in TLC V-NAND, the number of pulses applied to the control gate of the cells is reduced. Increased performance. As a result, the 850 EVO line is slightly inferior to the 850 PRO in terms of performance. At the same time, drives of different sizes have approximately the same performance. There is no serious bias (according to the characteristics) between the models.

Two SSDs with the same volume of 500 GB were included in the review at once. SATA 3.0 and M.2 drives have similar technical specifications. Of course, 40nm TLC V-NAND memory with a 128Gb chip capacity is used everywhere. The 850 EVO series with SATA 3.0 interface has four models. The 1TB device stands out from the "crowd" somewhat, as it is based on a more powerful MEX controller. The same processor is used in the 850 PRO hard drives. There are only three drives with an M.2 interface. In all cases it is used printed circuit board format 2280 with two keys type "B" and "M".

At the beginning of this year, we planned a small update of the test methodology, but we decided to postpone it a little so that we could compare three more interesting drives with all previously studied ones. What is so interesting about them? First of all - the manufacturer and his history.

Unlike many other companies operating in this market, Samsung stood at its origins (so to speak), and it has always been “interested” in high-end devices. In particular, it was the Samsung 64 GB SSD SATA-2 about ten years ago that was one of the few competitors of the Intel X25-M at the time of the release of the latter, and in a number of scenarios it then remained unsurpassed. Of course, this did not save him: like all "first generation" devices, high speed performance was achieved through the use of fast, but very expensive SLC memory. The X25-M showed another way to improve performance: combining a [relatively] inexpensive MLC flash with an intelligent controller. As a result, it turned out fast device priced at $600 for 80 GB - to which Samsung and others could only answer with a 64 GB model for $ 1000.

The company made the right conclusions, immediately starting to develop controllers. At first they were sold to many manufacturers, but there were not enough stars from the sky. On the other hand, this made it possible to accumulate the necessary experience and finally decide on the directions for further development. Two major decisions were made: first, to sell the hard drive business magnetic disks(so as not to interfere), and secondly, to produce solid-state drives completely of our own design, and without giving the components "to the side." The first at that time seemed a bold but risky step: after all, hard drives had a very stable demand due to prices, so flash memory could not compete directly with them. However, with t. z. For the largest semiconductor manufacturer, it was logical to just work on making it possible :) What the company did in the following years, especially having such a serious trump card up its sleeve as independent production of everything you need, as well as first place in terms of production of flash memory specifically. As a result, controllers could always be "fitted" to memory, and memory to controllers, and Samsung depended much less on market conditions than most manufacturers - rather, the company determined it. Many promising areas were also correctly calculated in advance. In particular, more than four years ago we already got acquainted with - in fact, the second attempt by the company (the first was the "regular" 840) to create a fast and reliable drive based on TLC memory, which no one used for this then. And he didn't even try. It cannot be said that there were no rough edges at all, but valuable experience was gained. In particular, the SLC caching technology was tested at the same time.

It would seem that there is something special? Now TLC memory is already familiar - everyone uses it. And SLC cache too. But that was, remember, in 2013. And around the same time, Samsung decided to go into "3D" flash memory, as the traditional approach of keeping "ordinary" cells and reducing production rates began to gradually come to a standstill. However, in those years, all manufacturers started talking about the transition to 3D NAND, since everyone was in a similar position. But from conversations to implementation, a lot of time always passes - someone overcomes this path faster, someone more slowly. Samsung managed to get ahead of everyone: already in mid-2014, the first commercial products using V-NAND (as the developer called it) appeared. At first, the company configured this memory exclusively as MLC, to work in a more gentle mode, but since 2015, the number of crystals that can work reliably with eight levels has begun to increase, which allows you to store three bits of information. Note, by the way, that Samsung prefers not to use the abbreviation "TLC" when referring to "3-bit MLC". In principle, this is quite correct, although some may be confusing. But for most buyers, it is important, after all, not what is called, but how it works. And today we will study this using the example of three Samsung products - two completely new and one also almost new.

Samsung V-NAND SSD 850 Evo 500 GB

The first drives of the line with this name appeared, as already mentioned, in 2015. In principle, they were very similar to the 840 Evo, but they used 32-layer 3D of the same capacity instead of 128 Gbit planar crystals. The assortment has slightly thinned: 120 / 250 / 500 / 1000 GB - without an interesting intermediate model with a capacity of 750 GB. The older model even retained the same tri-core MEX controller as in the 840 Evo, while the rest received dual-core, but improved MGX, paired with LPDDR2 memory with a frequency of 1066 MHz and a capacity of up to 1 GB. At the same time, the drive (like its predecessor) was positioned as a competitor to mid-range devices - at that time mainly using MLC memory. However, even those often had only a three-, not five-year warranty, which has become the hallmark of the Evo family. Including the 2 TB modification that appeared a little later - which at that time was a very serious value, so it required the appearance of a special MHX controller (at the same time, the DRAM cache in this model was transferred to faster LPDDR3 memory).

Significantly surpassed in the second generation 850 Evo, which already used 48-layer 3D NAND with 256 Gb crystals. In principle, this, all other things being equal, would make it possible to transform the lineup from "120 / 250 / 500 / 1000 / 2000 GB" to "250 / 500 / 1000 / 2000 / 4000 GB", which was done, but the company did not limit itself to other equal ones. By switching, for example, the DRAM cache from LPDDR2 to LPDDR3 in the entire line, etc. However, these improvements were mostly cosmetic and did not affect performance too much. Yes, this was not required - a streamlined production process made it possible to produce fast and reliable memory, while competitors were still taking only the first steps along this path.

And at the end of last year, the company once again updated the 850 Evo - since production had already been transferred to 64-layer memory: more cost-effective. There are no fundamental changes between the models, so, like the previous “upgrade”, this one went quietly: just with a certain moment the supply of old-style drives stopped and only new ones began to be shipped. One could look for some differences in terms of modifications - in particular, devices with a capacity of 1 TB or more began to use 512 Gb crystals, but in 250 and 500 GB, 256 Gb remained to maintain the performance characteristics at the same level. And cache memory type LPDDR3 based on "megabytes per gigabyte of capacity." The warranty, of course, remained five years - limited to TBW according to the formula "75 TB for every 250 GB", i.e. 150 TB for our hero.

The main thing for the buyer, in general, in all these evolutionary changes was the constant price reduction. Other manufacturers, as a rule, achieved a similar effect by releasing new models - Samsung preferred to modify the existing one. In the end 850 Evo at the end life cycle this is not the same 850 Evo as at the beginning. In 2015, these drives did not try to compete in price with the cheapest SSDs on the market - for this, Samsung sometimes released planar TLC devices, such as the 750 Evo or 650. In 2017 they already could. At the same time, their speed characteristics at least did not decrease - the introduction of TLC memory in products from other companies, as we have already noted more than once, was usually accompanied by a decrease in performance and reliability. However, three years is a long time: during this time, both controller manufacturers and 3D NAND from other suppliers have “pulled up”. To which Samsung prepared not even one, but two answers.

Samsung V-NAND SSD 860 Evo 500 GB

Just a few months after the last "upgrade" of the 850 Evo, the company released new line drives - on the same memory. Almost on the same: nothing has changed in models from 1 TB, and the 500 GB modification (which we will test today) received 512 Gb crystals similar to the older ones, instead of 256 Gb. Thus, under some conditions, it may lag behind its predecessor, which can be considered a disadvantage. But quite predictable: 500 GB no longer causes any reverence, gradually turning into a running volume, at a price affordable for many users. Why do you need to reduce the cost - even at the cost of reducing some speed characteristics.

Since this will not always happen: a new series of drives has also received a new MJX controller. It remained dual-core, but the clock frequency has almost doubled, which allows you to work with more complex algorithms. In particular, for the first time in many years (since the very appearance in the 840 Evo!) the SLC cache has changed. Previously, it was static, but now, if necessary and there are free cells, the new controller can use some of them in the SLC mode, postponing the "compression" of data "for later" - when the load decreases. In practice, this means that if the 840 Evo and all 500 GB versions of the 850 Evo could only accept 6 GB of data at high speed (3 GB static SLC cache for every 250 GB of capacity), then in the similar 860 Evo the limit is increased already up to 22 GB. In principle, the latest Silicon Motion controllers (such as SM2258 or SM2259) can record in SLC mode at least all free cells (i.e., up to a third of the total capacity of the device), but in practice the first value is sufficient. Strictly speaking, for most users who are not fond of “hunting parrots” in benchmarks, 6 GB was more than enough, but since competitors have appeared, one must somehow respond to this.

In principle, an increase in TBW to maintain warranty conditions can also be considered a response to external influences. For example, those that appeared last year have a five-year warranty, but limited to 72 TB for every 128 GB of capacity. In the 850 Evo, we recall, 75 TB by 250 GB, i.e. almost half as much. And in the 860 Evo, it's already slightly larger, since the previous value has been doubled: 150 TB for every 250 GB. In general, no one bothered the company to do this before. And not only because the drives are physically capable of this - just when they are used "as intended" in normal personal computers recording volumes are much more modest. Why do manufacturers limit them? To protect yourself a little from a fairly popular "non-purpose" use - when consumer drives with a long warranty are installed somewhere in the server: backups is, but "covered" - will change. Naturally, this reduces sales of devices for the corresponding purpose, which is absolutely not necessary for their main suppliers (and Samsung is one of them in full). Especially given the presence of another product in the range ...

Samsung V-NAND SSD 860 Pro 512 GB

The release in 2018 of a new line of SATA drives based on MLC memory is, of course, a very bold decision, but quite justified. In any case, if we abstract only from requests spherical PC users in a vacuum and look at the market more broadly. After that, we will immediately see, for example... various network storages. NVMe devices are not needed there. Until recently, it was believed that SSDs were not needed at all, since they are too expensive, and performance is not determined by them. When using gigabit network adapters and a small number of simultaneous requests is true. And a dozen or two users can immediately work with some kind of corporate storage, and a 10 Gb / s channel can be used to connect it to the switch - and here the hard drives will already be a bottleneck, which we repeatedly test top-end NAS watched. Solid state drives won't. Of course they cost more, but if the problem can be solved for money, then this is no longer a problem, but only expenses:) In principle, a device based on TLC memory is also suitable for such work, but MLC will provide more stable speed characteristics, and the resource too.

More interesting in this case is the issue of memory used. The previous MLC line of the company, namely the 850 Pro series drives, used a rejection from 3D TLC NAND - which is also the reason for the slightly atypical crystal size at the start: 86 Gbps. The word “rejection”, of course, should not be frightened: it is obvious that the mode of operation of cells with four levels is much more gentle than with eight, and not only faster. The new drives use crystals of 64-layer MLC 3D NAND, with a capacity of 256 Gbps. With TLC, this does not "beat" in any way, so it can be assumed that Samsung makes such memory on purpose. On the other hand (which is more likely given the fact that it is already 2018), this may also be a by-product of the work on mastering the production of crystals QLC 3D NAND with a capacity of 512 Gb. It is clear that the production of high-quality memory of this type is very difficult, but it still needs to be dealt with. And then what was said above works - having its own production (and the largest in terms of volume), Samsung does not depend on the market situation. If the company had to buy memory on the open market, launching an SSD on the MLC would be extremely risky. With own production - no. Especially if these are really those chips that are unable to store four bits per cell - they still need to be put somewhere. And as a result, buyers can purchase a device with a large resource - TBW for models of 1 TB and above is just right to call PBW, since the bill goes to petabytes there, which is a little unusual for custom drives. Actually, for 512 GB we are talking about 600 TB for a five-year warranty period - against 300 and 150 TB, respectively, for 860 / 860 Evo. But not cheap, of course. But, at least, there is a corresponding offer in the company's assortment, which you can use - if necessary or simply if you wish (and financially possible).

Competitors

For comparison, we decided to take the results of two drives: and , since both are relevant at the moment and use a similar (in the first approximation) memory. The 545s and our heroes also have a five-year warranty in common, and the limitations of its conditions are similar to the 860 Evo (however, who stood on whom It's a tricky question, as mentioned above. Until recently, Blue 3D had a three-year warranty, but now the company has begun the process of increasing it to the same five years. However, even under the "old" conditions, you can compare Blue 3D with other participants - this is also a drive from a large and well-known manufacturer, and the prices are close.

Testing

Test Methodology

The technique is described in detail in a separate article. There you can get acquainted with the hardware and software used.

Application performance

As expected, in terms of tests high level all are about the same. But not quite - if you arm yourself with a magnifying glass, you can see that the three Samsung SSD slightly faster than Intel and WD offerings. And the distribution of seats inside it is also predictable: the fastest is the 860 Pro, and the slowest is the 860 Evo. However, to notice this, you no longer need a magnifying glass, but a microscope :)

As for potential capabilities of drives, then in general the picture has not changed - except that the gap from the "pursuers" has increased. As a result, modern versions of Evo are the first SATA drives on TLC memory that have fallen into our hands, capable of exceeding 300 MB / s in this test. However, regardless of its type, only one device capable of this has previously been in our laboratory - Toshiba Q300 Pro 256 GB. Thus, the only thing that somewhat overshadows the significance of the event is potentiality this result.

The previous version of the test package shows us a similar picture. In general, Samsung drives are more favorable than vice versa. That is, it is clear that if the difference in speed is noticeable only in tests, it can be neglected - but, all other things being equal, why not choose a faster drive. With unequal - already need to choose: what is more important.

Sequential Operations

With these scenarios with a limited data area, everything has long been clear - the limiter for SATA drives is the SATA interface itself. Including when writing, since SLC caching has long been the standard behavior of TLC-based drives, and no tricks are needed for MLC memory. Therefore, in the updated test methodology we will complicate the task :) And today we will simply postpone the final verdict until more serious loads.

random access

Samsung controllers have long been coping with such loads easily and naturally, 3D NAND of its own production has never been slow either - as a result, the results are high. Unless the loss of the 860 Evo to its predecessor of the same capacity may upset someone, but there is nothing unexpected in it - increasing the capacity of crystals and reducing their number should have worked. In the end, the performance margin was sufficient so that even after its decrease, it would still outperform drives of the same class from other manufacturers, and “intra-company” competition is still not planned: as the old reserves are exhausted, the 850 Evo will simply disappear from the shelves .

Working with large files

Reading data, as has been repeatedly said, has not been a problem for memory of any type for a long time (controllers can limit performance), so everyone amicably rested on the interface at a comparable level.

The write obviously "flies" beyond the capacity of the SLC cache, despite the increase in its capacity in 860 Evo, and the performance of the memory array itself has decreased due to reduced parallelism. Accordingly, if the 850 Evo gave out a maximum for SATA600, then its successor cannot. And it even lags behind competitors who use 256 Gb crystals in models of this capacity, "holding" larger ones for larger capacities.

Another tricky (still) scenario for TLC drives is writing at the same time as reading. However, for obvious reasons, this problem does not affect the 860 Pro - the use of two-bit cells paired with a high-performance controller allows the device to demonstrate the maximum performance available for SATA600. But the drives of the Evo family are noticeably slower - especially with (pseudo) random access. However, it is also easy to see that it is possible to provide noticeably higher performance only due to tricks, such as the “infinite” SLC cache of drives based on the latest Silicon Motion controllers, but not when using conventional static caching. Yes, and "unusual" as in the 860 Evo, too - it copes only with smaller amounts of information. However, all this becomes insignificant if you remember that most solid-state drives are not doing better :) But, at the same time, their manufacturers do not leave such a choice as Samsung (which updated the MLC line - albeit at the appropriate price).

Ratings

As mentioned above, the performance of the 860 Evo could have been reduced - anyway, "in parrots" it is longer than its main competitors. And if you need even more "feathered ones", it is customary to hunt for them in other places - equipped with other interfaces, in any case. The latter has long determined a lot - why we immediately wrote that the 860 Pro is not about speed in the first place. In any case, not about the one that is interesting to the individual PC user.

But, of course, representatives of this line will perfectly cope with such loads - they are simply redundant for this. As well as the warranty resource is also from a completely different area, but it may come in handy for especially suspicious buyers. And in terms of performance and Evo is enough. Including and the new series - where it has slightly decreased, but still remained noticeably higher than that of most competing developments. In any case, within the class, it is clear that changing the interface allows you to remove some bottlenecks (at least in terms of low-level characteristics), but this is a different story.

Prices

The table shows the average retail prices of SSDs tested today, as of the time you read this article:

Intel 545s 512 GB	Samsung 850 Evo 500 GB	Samsung 860 Evo 500 GB	Samsung 860 Pro 512 GB	WD Blue 3D 500 GB

Total

In principle, we did not count on any discoveries: Samsung, as already mentioned at the beginning, has solid experience in both the development of solid-state drives in general and the use (and production, which is especially important) of 3D NAND TLC. In fact, the company simply overtook its competitors “on the turn”: everyone talked about the need to switch to 3D NAND, but the transition itself was very difficult for the majority. The resulting head start in a couple of years at Samsung disposed of in the right way, as a result of which now the company's solutions based on TLC memory are among the best on the market. And it is very important that by now they can even be considered inexpensive: from the “middle” class, the Evo line has gradually descended into the budget one, without losing its advantages along the way.

At the same time, high production volumes allow the company not to completely abandon MLC NAND. Of course, this memory has already turned into niche solution, but niche she definitely has. And with further price reduction, it will only expand. And of course, the 860 Pro will be relatively popular with ordinary users, since some of them are still wary of TLC memory. It is clear that they will have to pay extra for psychological comfort ... But on the other hand, what else is worth paying for, if not for comfort? :)

This is the situation today. What will happen tomorrow is unknown. In the semiconductor market, you definitely need to run just to stay in place, and to get somewhere you need to run twice as fast. In the near future, new “turns” await us in the form of the introduction of QLC NAND, or even “non-NAND” memory. And which of the manufacturers will cope with the transition in the best possible way, only time will tell. So far, no one is seriously threatening Samsung's position in the SSD market, and the new lines of drives fully confirm this.