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Item#: N82E16820147193

SAMSUNG 840 Pro Series 2.5" 256GB SATA III MLC Internal Solid State Drive (SSD) MZ-7PD256BW

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  • 2.5"
  • 256GB

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
Samsung Logo

Samsung 840 PRO Series 256GB SSD

Samsung hero image
  • Enables you to boot up your computer in as little as 15 seconds
  • Energy efficient - improves battery life by up to 50 minutes*
  • Solid-state design provides greater shock protection for data and brushed metal case blocks dust and corrosion
  • Worry-free data security with AES 256-bit full-disk encryption
  • 3-Core Samsung MDX Controller ensures sustained performance under the most punishing conditions
  • Precision engineered using 100-percent Samsung genuine components
  • Backed by a five-year limited warranty
Samsung 840 PRO Series SSD Samsung 840 PRO Series SSD Samsung 840 PRO Series SSD
Fast, Consistent Performance for Heavy Workloads

Designed for professionals and their most demanding applications, the SSD 840 PRO provides unrivaled read, write, and multi-tasking performance. It's built for the real world, with no moving parts reducing the risk of damage from shock, while using the latest in security technology including AES 256-bit encryption. Its ultra-efficient design means increased battery life.

Industry-Leading Performance for Professionals

With Samsung's 840 PRO Series SSD, everyday tasks on your desktop or laptop PC become faster and more responsive, providing workstation-class performance for seamless video editing or the ultimate gaming experience.

The 840 PRO is capable of delivering quick sequential read and write speeds--up to 540MB/s and 520MB/s respectively--for ultra-fast file transfers. In addition, the SSD features exceptional random speeds with 100K IOPS (read) and 90K IOPS (write) for the fastest real-world performance*. And it provides superior write performance for non-compressible data like images, music, videos and .ZIP files.

Precision Engineered and Built In-House

The 840 PRO Series SSD is made to provide consistent, excellent performance through its entire lifetime even under extremely heavy workloads. Like all Samsung SSDs, it is designed and built completely in-house at Samsung using the highest industry standards and advanced Samsung memory technology. And, as with other solid state drives, the 840 PRO has no moving parts, which means no hard-drive spin-ups, no noise and superior data protection**.

Increased Reliability and Security

The 840 PRO allows you to keep up with demanding workloads while safeguarding your data. Advanced AES 256-bit full disk encryption provides worry-free data security. And the Samsung MDX controller technology and firmware ensures long-term sustained performance under the most punishing conditions.

Sleek, Lightweight, and Energy Efficient

At only 7 millimeters thick and weighing just 2 ounces, the 840 PRO Series SSD has a thin, lightweight design that can make your laptop lighter to carry.

And because it contains no moving parts and it features an ultra-efficient design, it consumes little battery power, letting you enjoy up to 50 minutes more of laptop battery life than a standard hard disk drive (HDD) or competitor SSD.*** This product also supports Device Sleep mode for Microsoft Windows 8 and Haswell chipsets to help reduce power consumption.

Maintenance Software for IT Managers

Samsung's Magician software includes business-friendly features that make it easy for IT managers to manage and maintain the health of the 840 PRO Series SSD, including Self-Monitoring, Analysis and Reporting Technology (SMART) Support.

Product and Warranty Details

This SSD has a usable capacity of 128GB, offers 256MB of Samsung LPDDR2 DRAM cache memory, and has a SATA 6GBps interface that is compatible with SATA 3Gbps and SATA 1.5Gbps. It measures 7.00 x 69.85 x 100.00 millimeters (H x W x D) and weighs 54 grams.

The 840 PRO Series SSD is backed by a five-year warranty.

Package Contents

840 PRO Series SSD, Samsung Smart Data Migration Software, Samsung SSD Magician software and manual CD, and quick user manual.

Samsung 840 PRO Series SSD
Samsung 840 PRO Series SSD
Capacity 128 GB 256 GB 512 GB
Model MZ-7PD128 MZ-7PD256 MZ-7PD512
Type of Drive Solid State Drive (SSD)
Form Factor 2.5-inch (Reduced 7mm thickness for use with ultraportables and netbooks)
For Use With Desktop and laptop PCs (including ultraportables and netbooks) and workstations
Interface SATA 6Gbits/s (backwards compatible with SATA 3Gbits/s and SATA 1.5Gbits/s)
Random Read Speeds 97K IOPS 100K IOPS
Sequential Read/Write Speeds 530 MB/s / 390 MB/s 540 MB/s / 520 MB/s
Controller 3-Core Samsung MDX Controller
Type of NAND Flash 2xnm Samsung Toggle DDR 2.0 NAND Flash Memory (400Mbps)
Type of Cache 256MB Samsung LPDDR2 SDRAM 512MB Samsung LPDDR2 SDRAM
Included Software Samsung Magician 4.2.1, Samsung Smart Data Migration software
Dimensions 0.28 by 2.75 by 3.94 in. (H x W x D)
Warranty 5-Year Limited
*Real-world performance based on PC Mark 7 performance versus leading competition (
** Incompressible data performance based on AS-SSD Sequential Write performance versus leading competition (
*** Up to 50 minutes longer battery life versus standard HDDs and some competitor SSDs


Learn more about the SAMSUNG MZ-7PD256BW

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details

Customer Reviews of the SAMSUNG MZ-7PD256BW

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  • Sam B.
  • 4/29/2016 9:24:38 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsVery fast, awesome tuning software, great product!

Pros: Fast, Samsung tuning software works great and really speeds it up even more. Reliable and silent of course, all in all a great product.

Cons: Tuning software is needed to get optimal speed but only works on one drive (software says so when you run it), if you install a second one you won't get quite as good performance from it.

Did you find this review helpful? Yes No

  • David S.
  • 4/9/2016 8:10:11 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWorks Great

Pros: Bought this several years ago and recently started using again in a older SATA1 machine and it is still working perfectly.

Cons: None

Did you find this review helpful? Yes No

  • dale b.
  • 3/26/2016 7:18:16 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsSAMSUNG 840 Pro Series 256GB SSD

Pros: I have had 2 of these running in raid 0 for 3 years now and have had no issues what so ever. The software that came with this was so easy to use couldnt be happier. Also installed one in a computer at work and she also loves the speed she has now.

Cons: None what so ever.

Other Thoughts: I would recommend these to anyone especially to someone thats is still using a standard hdd. Since it comes with the migration disc installation is a breeze.

Did you find this review helpful? Yes No

  • Anonymous
  • 3/3/2016 6:16:18 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsThis SSD is incredible

Pros: - Super fast.
- The Samsung Magician software is easy to use.

Cons: No cons

Other Thoughts: I was surprised when after a few years of owning this SSD I found out that it is still one of the top consumer SSD's around. It is actually about $100 more expensive now than when I bought it.
Also, there is a function in the Magician software to toggle on/off Superfetch and Prefetch, but the prefetch option doesn't work. I think it has something to do with the fact that Superfetch is a service and can be toggled manually from the Windows management console, but Prefetch must be toggled from within the registry.

Did you find this review helpful? Yes No

  • Scott A.
  • 2/14/2016 9:05:53 AM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsFailure after 25 months

Pros: Easy to setup and install. Fast boot up

Cons: Didn't last very long. Lost everything. Refused to replace with another Samsung

Did you find this review helpful? Yes No

  • Daniel A.
  • 2/4/2016 7:07:19 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsAwesome Drive

Pros: Fast, reliable, and cheap

Cons: None

Other Thoughts: I have two of these, 1 runs my OSs, 1 stores my frequent games. 0 issues after many months of use. Can not recommend this drive enough.

Did you find this review helpful? Yes No

  • N/A
  • 11/22/2015 1:44:30 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs3 Years and still going

Pros: This drive has been flawless. I have used the 850 Pro and the 850 EVO also and they are all Super!

Cons: Had some trouble updating the firmware. Not a big deal

Did you find this review helpful? Yes No

  • Richard
  • 8/28/2015 6:20:14 PM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsSamsung 840 Pro Series Died

Pros: Worked well for 2 1/2 years until it died without warning.

Cons: Died after 2 1/2 years

1 out of 2 people found this review helpful. Did you? Yes No

  • Hamani
  • 8/20/2015 7:14:56 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsSAMSUNG 840 Pro Series Died

Pros: SAMSUNG 840 Pro Series worked very well during 9 months and now is dead as a brick.

Cons: Died in 9 months while just browsing the web I got a blue Screen and the drive was never seen again by the OS or in the motherboard Bios , dead as a brick

Other Thoughts: I bought 10/13/2014 and it's said:
Limited Warranty period (parts): 5 years
Limited Warranty period (labor): 5 years
So, I'm asking for new replacement SSD the same or full refund

3 out of 3 people found this review helpful. Did you? Yes No

  • N/A
  • 8/1/2015 8:30:58 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsMr. Pawneezr

Pros: So far it has lasted for a year, It's super fast and stable.

Cons: How many more years?

Did you find this review helpful? Yes No

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Item#: N82E16820147193
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