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Item#: N82E16820147192

SAMSUNG 840 Pro Series 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD) MZ-7PD128BW

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  • 2.5"
  • 128GB

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Samsung Logo

Samsung 840 PRO Series 128GB 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 the 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% 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 530MBps and 390MBps respectively--for ultra-fast file transfers. In addition, the SSD features exceptional random speeds with 97K 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 7mm thick and weighing just 2oz, 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 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 6Gbps (backwards compatible with SATA 3Gbps and SATA 1.5Gbps)
Random Read Speeds 97K IOPS 100K IOPS
Sequential Read/Write Speeds 530 MBps / 390 MBps 540 MBps / 520 MBps
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-7PD128BW

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-7PD128BW

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  • Jacob r.
  • 5/10/2016 5:40:58 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGood Stable

Pros: fast, stable low power usage.

Cons: small size

Other Thoughts: I had these in raid 0 for high sustain reads. Never failed in 2 years. I tried them in laptops, increased battery life by 20% compared to HDD. I switched to a single 500gb Evo last year so I could get higher iops/ random reads without raid

Did you find this review helpful? Yes No

  • Bradley B.
  • 4/22/2016 8:57:54 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsFast & Keeps Working

Pros: 4/22/16 Update: 2yrs now w/out any issues... 6 months now with daily use and still going strong with no issues. No installation issues (this is an OEM drive, no cables, no mounting hardware). Installed Win 7 Home 64bit without any issues. Boots system in under 10 sec. I've never had a boot problem. ASUS Z87 & Core i5 4570

Cons: I'm a simple user so I don't know what to do with the advance features of an SSD. Also, I don't run speed tests so I can't say if the data rate is up to spec. Suffice it to say that for the lay person this drive is fast and reliable.

Other Thoughts: I hear of all of the troubles others are having with SSDs crapping out. The reviews of this one says it all. That's why I bought it. Reliable (at least for 6mo now) and fast. Will update in another 6mo.

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  • Britt N.
  • 3/12/2016 8:38:55 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsExcellent SSD

Pros: Very fast and reliable. Purchased in December 2013 and has worked great ever since.

Cons: None.

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  • Anonymous
  • 2/13/2016 10:26:58 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsStill rocking hard after all these years

Pros: Works, fast and reliable

Cons: none

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  • Anonymous
  • 1/31/2016 3:36:34 AM

5 out of 5 eggsPLEASE!!

Pros: Please do not post a review of having 5 Star - (High) Tech knowledge when you obviously don't. Just because you've rolled out a few dozen systems for family and friends, does not dictate high expertise.If you buy this drive (an awesome one at that) Make sure you connect it to an Intel controller (if you have one?) not a marvell!! <------

In your bios select AHCI mode and also download the latest Intel drivers. Don't use the microsoft driver!! Enjoy!!! Oh BTW, the fastest speeds are from the 256gb and up models!! Happy holidays.

Cons: none

Other Thoughts: Wish they could make me breakfast!!

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

  • Antoine J.
  • 1/28/2016 10:12:54 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsThe SSD OS drive, period!

Pros: Used for OS drive in two builds. Lightning quick to Windows 7 desktop and flawless performance. Great for video editing as well.

Cons: The formatted capacity is ~120 GB, which is to be expected. Otherwise, none to state. Did not use included software.

Other Thoughts: I bought two of these drives in 2013 based on reviews and price as I am not a person who usually buys Samsung. But these drives blew my mind, not so much for the AMD FX system I newly built that year, but for the life it breathed in to my 2007 AMD Opteron 2.2 Ghz system that I am using as a file server and backup PC. That computer has never performed so swiftly and smoothly in all the years I've had the build.

The 128 GB size is ideal for boot drives or refreshing an old/slow laptop. For 2016, I upgraded to Windows 10 and used a Samsung 850 SSD at 256 GB for that install because I found the 128 GB to be a bit to be a bit stifling. If you are on a budget and want to get your feet wet at the fountain of SSD, this is a great place to take a dive!

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  • Kenneth E.
  • 1/8/2016 8:43:51 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsInstall it and forget it

Pros: -Fast fast FAST!

Cons: None

Other Thoughts: I'm no expert but this thing was super simple. I just plugged it in and other than a couple SSD specifics in my OS I don't even have to think about it. Over a year and not so much as a glitch!

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  • D T.
  • 1/7/2016 3:00:43 PM
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsGreat when it worked

Pros: my older computer using an x58 chipset worked great.

Cons: Lasted only 1 year.

Other Thoughts: I would recommend this product only if I knew they could replace a hard drive and recognize a harddrive problem.

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  • Henry M.
  • 1/5/2016 11:06:53 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsfast, reliable and awesome

Pros: reliable

Cons: NOT a darn thing...
ok maybe one... but it's on me... i'd go bigger GB wise... other than that... NO CONS

Other Thoughts: this SSD will make you never go back to discs and if you ever use anything slower you'll regret it
I bought this back in 2012... the computer is a workhorse. and its' on 24/7...

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

  • N/A
  • 11/11/2015 9:21:07 AM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsdecent but died after 2 years

Pros: All around a great drive, worked well for 2 plus years.

Cons: Died after 2 years. Samsungs warranty page is virtually impossible to get an rma. Most the pages don't exist

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