Samsung logo MPN: MZ-7KE256BW

Samsung 850 PRO 256 GB 2.5″ Serial ATA III 3D MLC

Released: Not on record
$271.95 MSRP $159.99 ▲ +70% since release from US · Amazon.com Updated 2 months ago Last updated Sep 3, 2026 03:13 UTC

Ratings & price sourced from Amazon.com (United States).

Capacity
256 GB
Form factor
2.5"
Read speed
550 MB/s
Write speed
520 MB/s
Interface
Serial ATA III
NAND type
3D MLC
Transfer rate
6 Gbit/s
Depth
6.8 mm
Width
100 mm
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Overview

The Samsung 850 PRO 256 GB 2.5″ Serial ATA III 3D MLC features a 256 GB SSD. Full verified specifications are listed below.

Technical Specifications

Storage

6 SPECS
Read speed
550 MB/s
NAND type
3D MLC
Write speed
520 MB/s
Capacity
256 GB
Form factor
2.5"
Transfer rate
6 Gbit/s

Ports & Connectivity

1 SPEC
Interface
Serial ATA III

Physical

5 SPECS
Depth
6.8 mm
Width
100 mm
Height
69.85 mm
Weight
66 g
Colour
Black

Logistics & Packaging

4 SPECS
Package depth
150 mm
Package width
150 mm
Package height
20 mm
Package weight
130 g

General

19 SPECS
Internal
Yes
TBW rating
150
TRIM support
Yes
Operating shock resistance
1500
Operating voltage
5 V
Random read (4KB)
10000
Random write (4KB)
36000
S.M.A.R.T. support
Yes
Non-operating shock resistance
1500
Security algorithms
256-bit AES
Non-operating vibration tolerance
20
Power draw (idle)
0.4
Power consumption (sleep)
0.002 W
Drive cache
512 MB
Storage temperature
-40 - 85
Operating temperature
0 - 70
Storage relative humidity (H-H)
5 - 95
MTBF
2000000
Operating humidity
5 - 95

Market Value History

Sources

Product lifecycle

In production

Still listed as on-market by the manufacturer — actively sold and supported.

Lifecycle status is derived from catalog data and is indicative, not a manufacturer support guarantee.