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Samsung 840 Pro 256GB 2.5" SATA III Solid State Drive (SSD) - MZ-7PD256BW - MZ-7PD256BW

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5 out of 5
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Ease of Use

I was running out of space on my trusty 160GB Intel X-25M G2 SSD, so I bought this drive to replace it. My laptop has only SATA 2, so this drive cannot quite reach its full performance potential - as reported by Samsung's own performance test utility, while 840 Pro is 4x faster than X-25M for both sequential and random writes, it is only about 25% faster than Intel in both sequential and random reads on my system. On top of that, Samsung's data migration software is a joke - instead of booting off of a CD or USB thumb drive, it wants to copy system partition from under running Windows - and skips any files that are locked. Meh.

-paul quote

Really ...?

by Larry on 4/3/2013

Samsung included Data migration software. Me "Oh goodie this can really make my life less complicated". " What? You have to have two Samsung SSDs for it to work?"

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Samsung 850 Pro SSD and data migration software

by Larry on 4/16/2013

The Samsung data migration software did not work for me, keep aborting on "external error." Data migration required me to learn a bunch of new acronyms, trying various HDD partition utilities, and reading (too many) data migration horror stories on the web. Samsung should provide data migration software for all machine configurations (BIOS, partition type, and other alien acronyms). Changing from HDD to model 830 on 4 year old XP machine 1. Major decrease in boot time to logon and from logon to point when apps could be started without irritating delay (hour glass) 2. Noticeable decrease in app and data loading 3. Upgrade time, effort and anxiety was low, data migration was easy 4. Well worth the money ($100), machine much more fun to operate, life is gooder. Changing from HDD to model 850 Pro on new Win 8 machine 1. No decrease in boot time to logon. 2. Definite decrease in startup from logon to point when apps could be started without irritating delay (hour glass). 3. Upgrade time, effort and ANXIETY was major NEGATIVE! 4. I should have saved the money ($200) as the upgrade had LOW "more-fun to cost ratio." CONCLUSIONS: 1. Samsung model 850 Pro's numbers indicate better than model 830 and much better than HDD. But the numbers are misleading. 2. Upgrading to model 850 resulted in little change in "real world" machine performance (for my *newer* machine). Yes, I would I recommend *this* SSD to a friend with an *older* machine. No, I would not recommend any SSD to a friend with a *newer* machine with fast HDD... unless my friend was rich.

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Product Overview

Designed for professionals and demanding applications, the SSD 840 PRO provides exceptional read, write, and multi-tasking performance. It's built for the real world, with no moving parts to reduce the risk of damage from shock, while using the latest in security technology including AES 256-bit encryption. Additionally, its ultra-efficient design means increased battery life. This version of the 840 PRO Series SSD has a capacity of 256 GB.

Exceptional 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.

Engineered for Reliability and Security
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.

The 840 PRO allows you to keep up with demanding workloads while safeguarding your data. Advanced AES 256-bit ATA full disk encryption provides worry-free data security. And the 4th generation Samsung MDX controller technology and firmware ensures long-term sustained performance under the most punishing conditions.

Thin, Lightweight Design and Low Battery Consumption
At only 7 millimeters thick and weighing just 2 ounces, the 840 PRO Series SSD has a sleek, lightweight design that can make your laptop lighter to carry.

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

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

Product and Warranty Information
This SSD has a usable capacity of 256 GB, offers 512 MB of Samsung DDR2 SDRAM cache memory, and has a SATA 6b/s interface that is compatible with SATA 3 Gb/s and SATA 1.5 Gb/s. It measures 7.00 by 69.85 by 100.00 millimeters (H x W x D) and weighs 62.5 grams.

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

What's in the Box

  • 840 PRO Series SSD
  • Samsung Smart Data Migration Software
  • Samsung SSD Magician software and manual CD
  • Quick user manual


Manufacturer Samsung
Mfg Part# MZ-7PD256BW
SKU 242299158
UPC 887276001173
UPC 14 00887276001173
Enables you to boot up your computer in as little as 10 seconds
Energy efficient--improves battery life by up to 50 minutes***
Solid-state design provides greater shock protection for data; brushed metal case blocks dust and corrosion
Worry-free data security with AES 256-bit full-disk encryption
4th-generation 3-Core Samsung MDX Controller ensures sustained performance under demanding conditions
Precision engineered using 100-percent Samsung genuine components
Backed by a five-year limited warranty
Tech Specs
Drive Interface SATA/600
Buffer 256 MB
Maximum Read Transfer Rate 540 MBps
Maximum Write Transfer Rate 520 MBps
Maximum External Data Transfer Rate 768 MBps (6 Gbps)
Product Type Solid State Drive
Manufacturer Part Number MZ-7PD256BW
Manufacturer Website Address
Manufacturer Samsung
Product Model MZ-7PD256
Product Name 256GB 2.5-inch SSD 840 Pro Series
Product Series 840 Pro
Brand Name Samsung
Weight (Approximate) 2.40 oz
Form Factor Internal
Height 0.3"
Drive Width 2.5"
Storage Capacity 256 GB

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