Skip to main content
Samsung 850 PRO - 256GB - 2.5-Inch SATA III Internal SSD (MZ-7KE256BW)
Samsung

850 PRO - 256GB - 2.5-Inch SATA III Internal SSD (MZ-7KE256BW)

By SpecPicks Editorial · Verified 2026-08-21

$99.00
Buy on Amazon — $99.00 Compare to similar ssds & storage

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The 850 PRO - 256GB - 2.5-Inch SATA III Internal SSD (MZ-7KE256BW) is a niche pick — read recent reviews before buying in the ssds & storage category, priced around $99.00. Read recent reviews carefully before committing.

The Samsung 850 PRO 256GB brings SATA III performance that still holds up for boot drives, older desktops, and retro-adjacent builds. Samsung rates it at sequential reads up to 550 MB/s and writes up to 520 MB/s, with random performance reaching 100,000 read IOPS and 90,000 write IOPS — enough to boot a system in as little as 15 seconds. Driving it is Samsung's 5th-generation 3-core MEX controller, built to hold performance steady under sustained write loads rather than falling off after a short burst. Endurance is the headline. This 2.5-inch SSD carries a 150TBW rating and an…

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks classifies Samsung 850 PRO - 256GB - 2.5-Inch SATA III Internal SSD (MZ-7KE256BW) as a niche pick — read recent reviews before buying in the ssds & storage category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Samsung's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ 100-percent genuine Samsung components from the #1 memory manufacturer in the world
  • ✓ Backed by Samsung's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • Features sequential read and write performance up to 550 megabytes per second (MB/s) and 520MB/s respectively, and random read and write input/output operations-per-second (IOPS) up to 100,000 and 90,000 each.
  • Class-leading performance -- enables you to boot up your computer in as little as 15 seconds
  • Energy efficient - Features Device Sleep mode for Ultranotebooks and improves battery life by up to 45 minutes vs. standard hard drives
  • Worry-free data security with AES 256-bit encryption, Microsoft Bitlocker and TCG / Opal 2.0 support
  • 100-percent genuine Samsung components from the #1 memory manufacturer in the world
  • 5th-generation 3-Core Samsung MEX Controller ensures sustained performance under the most punishing conditions

Full Specifications

BrandSamsung
ColorBlack
Model Name850 Pro
Read Speed550 megabytes_per_second
Unit Count1 Count
Form Factor2.5-inch
Media Speed520 megabytes_per_second
Model NumberBPSCS27759-MZ-7KE256BW
Built-In Media2.5” (7mm) SATA III (6GB/s) SSD & User Manual
Hard-Drive Size256 GB
Mfr Part NumberMZ-7KE256BW
Number of Items1
Special FeatureSamsung SSD Magician Software| Samsung Data Migration Software
Item Part NumberMZ7KE256BW

Ready to buy?

Samsung 850 PRO - 256GB - 2.5-Inch SATA III Internal SSD (MZ-7KE256BW) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Related SSDs & Storage

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
Samsung 850 PRO - 256GB - 2.5-Inch SATA III Internal SSD (MZ-7KE256BW)
$99.00
View on Amazon →