250GB 850 EVO SSD 2.5" SATA 6Gbps 32 Layer 3D V-NAND Solid State Drive (MZ-75E250B/EU)

  • The 850 EVO is the advanced consumer SSD powered by 3D V-NAND technology that maximizes everyday computing experiences with optimized performance and enhanced reliability
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Stock Code: HD-191-SA

EAN: 8806086522977

MPN: MZ-75E250B

Manufacturer: Samsung

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Product information:

250GB 850 EVO SSD 2.5" SATA 6Gbps 32 Layer 3D V-NAND Solid State Drive (MZ-75E250B/EU)

Samsung’s unique and innovative 3D V-NAND flash memory architecture is a breakthrough in overcoming the density limitations, performance and endurance of today’s conventional planar NAND architecture. 3D VNAND is fabricated by stacking 32 cell layers vertically over one another rather than decreasing the cells dimensions and trying to fit itself onto a fixed horizontal space resulting in higher density and better performance utilizing a smaller footprint.

Optimized performance for everyday computing experiences
Powered by Samsung's cutting-edge 3D V-NAND technology, 850 EVO delivers top-class sequential
and random read and write performance to optimize everyday computing. With improved performance thanks to TurboWrite technology the 850 EVO provides not only more than a 10% better user experience than 840 EVO but up to 1.9x faster random write speeds for the 120/250 GB models as well. In fact, the 850 EVO delivers top class sequential read (540 MB/s) and write (520 MB/s) performance in all capacities. This comes with optimized random read and write performance on all QD and improved QD1 and QD2 random performance for Client PC usage.

Reinforcement of TurboWrite Technology
In the early stages of the 840 EVO, Samsung adopted sequential write performance first. With
TurboWrite, write speeds are significantly accelerated during data transfers by creating a high-performance write buffer in the SSD. If a consecutive write operation (i.e. no idle time) exceeds the size of the buffer, the transfer will exit TurboWrite and be processed at ”After TurboWrite” speeds. Once the buffer is cleared, TurboWrite performance will resume. However, the buffer size for TurboWrite is more than sufficient for everyday PC use, and you should experience accelerated speeds for most workloads.

Guaranteed endurance and reliability for maximum use
The 850 EVO delivers guaranteed endurance and reliability by doubling the TBW compared to the
previous generation 840 EVO backed by an industry leading 5 year warranty. With twice the endurance of a typical NAND flash SSD, the 850 EVO will keep working as long as you do. The 850 EVO guarantees a 5 year limited warranty or 75TBW for 120GB and 250GB, 150TBW for 500GB and 1TB.

Enhanced reliability with improved sustained performance
With enhanced reliability through improved sustained performance, the 850 EVO assures longterm
dependable performance up to 30% longer than the 840 EVO with minimized performance degradation. This means you can use it every day when taking care of work or entertaining yourself knowing it will keep performing even with heavy daily workloads over the years.

Advanced data encryption
The 850 EVO provides the same data encryption feature as the 840 EVO does. Self-Encrypting Drive
(SED) security technology will help keep data safe at all times. It includes an AES 256-bit hardwarebased
encryption engine to ensure that your personal files remain secure. Being hardwarebased, the encryption engine secures your data without performance degradation that you may experience with a software-based encryption. Also, 850 EVO is compliant with advanced security management solutions (TCG Opal and IEEE 1667). Magician will guide ”How to use security features”. Furthermore, you can erase or initialize data with the crypto erase service with PSID.

Efficient power management for all PC applications
Power consumption affects everyone. You actually save of up to 50% more on power than with the 840 EVO during write operations thanks to 3D V-NAND consuming half the power of 2D planar NAND.
Whether it’s preserving battery life for longer cordless use or just saving on costs, power management is important. Device sleep signals the SSD to enter a low power state which is vital for ultra-books and other battery powered devices. With 850 EVO’s Device Sleep at a highly efficient 2mW you get longer battery life on your notebook thanks to a controller optimized for 3D V-NAND. With the 850 EVO you can work and play longer without having to plug in.

- SATA 6Gb/s SSD for Client PCs
- 2.5 inch form factor
- Samsung 32 layer 3D V-NAND
- Samsung Magician Software for SSD management
- Samsung Data Migration Software

- Controller: Samsung MGX Controller
- DRAM Cache Memory: 512MB
- Sequential Read: 540Mbps
- Sequential Write: 520Mbps
- 4KB Random Read (QD1): Max 10,000 IOPS
- 4KB Random Write (QD1): Max 40,000 IOPS
- 4KB Random Read (QD32): Max 97,000 IOPS
- 4KB Random Read (QD32): Max 88,000 IOPS
- Reliability: MTBF: 1.5 million hours
- Warranty: 5 Years
- TBW: 75TBW
- Data Security: AES 256-bit Full Disk Encryption (FDE) / TCG/Opal V2.0 Encrypted Drive (IEEE1667)


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Customer review

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Average customer rating

(from 12 customer reviews)
All Time (12)

Great SSD

Very fast drive i didn't know it had software supplied too never cloned a drive before but it was dead easy with data migration software it worked first time perfectly and i was up and running in no time.

Raggs 2017-10-10

Great SSD

Very fast drive i didn't know it had software supplied too never cloned a drive before but it was dead easy with data migration software it worked first time perfectly and i was up and running in no time.

Raggs 2017-10-09

Samsung make great SSD's

Very happy with this SSD.
Speed and life span alone make it a great investment.

Basard 2016-09-16

1 word: wow

I swapped my 6 year old laptop's 5400rpm for this. The difference, it's incredible. Cold boot to desktop fully usable in under 30 seconds instead of over 1 minute, I've never before seen triple digit copy/move numbers, everything is so snappy. Definitely picking up one or two when I'll be building a proper desktop.

Happy Camper 2016-05-27


just installed this drive as my my system drive, because my PC is full of hardware and 6 HDDs, boot time was almost 5 mins, now its down to less than one. if you dont have a SSD as your system drive, get on.... the best upgrade ever....

Mr john knight 2016-05-19

So easy to upgrade too

I got this to upgrade my old operating system 60gb ssd and I'm very impressed with how easy it was to do with the Samsung software that it comes with and how quick it was. You can get the latest version of there software from the Samsung site but it does come with a disc with it on aswell included though a older version .Its a fantastic bit of kit to add to any pc system

Kevin 2016-03-30


First SSD drive and I am very impressed. Physical size of the drive is tiny and obviously is silent when up and running. Booting into Winows 10 from cold to a useable system takes under 12 seconds.Will definitely be getting a second one.

sombaht 2015-12-19

Great performance and reliability

Have a pair of these in RAID0 at home and more than a few in the office. Great drives!
I'm a great fan of Samsung SSDs, had some really bad experiences with OCZ drives in the past where of the 5 drives I'd bought between home and work ALL failed, some several times after RMA...
Tried the samsung 830, as I've always trusted Samsung's build quality and reliability and have been buying their SSDs ever since. Having bought probably 20 or more Samsung SSDs now, I've only had one failure, and that was sorted very quickly by Samsung and has been rock solid ever since. Night and day to the OCZ experience!

Mike 2015-12-07


I've used Samsung SSDs for a while and can't fault these. I now have three of these drives in RAID0 and can't fault them. The speed is fantastic

James 2015-10-27

Good Drive

I have the Samsung SM951 256GB M.2 as a boot drive for windows 8.1, Corsair 120GB Force 3 for linux, Crucial M500 480GB for Games and the Samsung 850 EVO 250GB for Adobe and some other software and so far no problems, I've recommended Samsung SSDs to a few people and there also more than happy with them. Recommended.


Best SSD in pric erange

This is the best SSD within its price range, the only con is that it does not come with a mounting bracket I had to buy one separately for


Does what it claims

I have 2 Samsung SSD's, both EVO850's, one 120GB for the OPSY and one 250Gb for data. The rest of the PC is passively cooled, so no moving parts, except the DVD drive.

Boot time is around 9 seconds from cold and is silent all the way. Performance benchmarks show it to be quite fast, beating some overclocked examples using the same processor. I underclocked mine slightly to reduce heat, but this hasn't had an impact on day to day performance.

I can't recommend these drives enough, they are fast, quite and easy to use. They are also tiny so don't get dissappointed when you send all that money on such a small box.


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