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Item#: N82E16820147193

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

  • 2.5"
  • 256GB
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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

Quick Info


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years

Customer Reviews of the SAMSUNG MZ-7PD256BW

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  • Phillip J.
  • 6/7/2015 10:38:33 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsfast and reliable

Pros: Been using this for 9 months. I build a primary desktop every 2 to 3 years. This was my first time to build with an SSD drive. This one was highly rated, so I took the gamble. Fast boots and quick Windows 8 response makes me a happy man.

Cons: cost, but I'm sure SSD drives will drop over the next few years

Other Thoughts: I was skeptical. I kept reading and hearing about SSD failures. This one is a "solid" model. Heh.

Did you find this review helpful? Yes No

  • Matthew B.
  • 5/4/2015 11:48:54 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsExcellent!

Pros: Fast write, fast read. Boot speed with Win7 only: 13 sec.
Boot speed with Win7, SWTOR, Office, ACAD: 16sec.
I have been writing/deleting a lot more than I thought I would and the drive is still going strong.

Cons: none so far.

Other Thoughts: I have heard that some people are having issues after a firmware update using the Samsung Magician software. I have not installed this software, nor have I ever done any firmware updates. I'm not sure if this applies to my 256GB drive or just the 1TB drive I've seen comments on.

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  • David S.
  • 5/2/2015 8:53:28 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWell over a year of perfect performance

Pros: Fast, zero issues.

Cons: None

Other Thoughts: I wish I had bought I higher capacity drive, but that's on me.

Did you find this review helpful? Yes No

  • Anonymous
  • 4/26/2015 8:29:05 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

4 out of 5 eggsparts for a gaming computor

Pros: It's very light, has very good performance, I loved how much it can handle at once, but of course it is a "Pro Series" so it would make sense

Cons: It only had one problem, but I think it was only just for me it was very unstable at some points. For instance it just stopped working, and it took minutes to turn back on

Did you find this review helpful? Yes No

  • Carolina D.
  • 4/4/2015 10:50:54 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

Pros: i will recommend this item

Cons: none so far

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

  • Anonymous
  • 3/23/2015 3:55:16 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsJ3S_u.s

Pros: Have 2 of these. They are great. Super fast.

Cons: Since 850 series came out the price jumped on these beauties +200 dollars. 850 series are better than 840 and cheaper (currently) but 840 were THE SSD to go to for max speed in it's day (just last year actually.) Things go fast in this industry.

Other Thoughts: Well, if you have one of these--keep them. If you don't,.. go for Samsung 850 series. 850 series offer similar specs but have a tighter and cleaner performance line when measured, and a new V-NAND 3D stacking technology to boot.

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

  • Andrew D.
  • 3/17/2015 5:56:08 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsBest SSD I have owned

Pros: Very fast and to date have not had an issue with any of the SSD's I have owned.
I wish I could buy more of them . Currently have a 256 (12 months + ) and a new 512GB one. Neither have skipped a beat and boot times are great.
Samsung has a great app to move your current drive over to an SSD and it works perfectly.
Runs on Windows 7, 8 and 10 preview without any issues.

Cons: more expensive than some of the other ones, but I do trust the pro series based on reviews online.

Other Thoughts: Overall, this is worth the money.. especially if you have an older system that needs a boost..

Did you find this review helpful? Yes No

  • Sean M.
  • 3/17/2015 8:32:39 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggs840 PRO

Pros: price, installation

Cons: failed after about 1.5 years
Samsung has no contact info available on line for warranty claims

current (3.17.15) contact info for Samsung for SSD warranty claims: 800.726.7864 - press 4, then 5, then 1

other web info is

Did you find this review helpful? Yes No

  • Jeff B.
  • 3/6/2015 6:39:02 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsExcellent Customer Service

Pros: Great SSD.
They gave me a partial refund for delayed shipping that wasn't even their fault. EXCELLENT CUSTOMER SERVICE!

Cons: Shipping was delayed - but NOT vendor's fault.

Did you find this review helpful? Yes No

  • Nicolaus R.
  • 3/3/2015 9:55:55 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDied after 4 months with sector failures

Pros: Very fast drive.

Cons: Died after 4 months as the OS drive. Restore from image still ended up with NT loader missing. Same restore image to other drive worked fine. Disk can only be returned for refurbished drive per Samsung's warranty policy.

Other Thoughts: If it would not have died so quickly, this drive would have been great. Very fast, boots Windows 7 Ultimate in less than 20 seconds.

Did you find this review helpful? Yes No

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