Samsung 850 EVO - 250GB - M.2 SATA III Internal SSD (MZ-N5E250BW)

Status: Samsung 850 EVO - 250GB - M.2 SATA III Internal… (250GB NVMe SSD): Unavailable on Amazon as of 2026-10-07 04:19 UTC. Closest in-stock match (same 250GB NVMe): SAMSUNG 860 EVO SSD 250GB - M.2 SATA Internal…, $149.00 on Amazon as of 2026-10-06 22:15 UTC (price may vary). eBay sellers may still list this model new or used.

View Current Price — $149.00 🛒 Search eBay for this model

Bottom line: The Samsung 850 EVO: 3D V-NAND stack, the first in a consumer SSD; main trade-off: SATA III caps throughput far below NVMe drives.

Unavailable on Amazon as of 2026-10-07 04:19 UTC

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Currently unavailable on Amazon. Not the same product — an in-stock alternative with matching specs:

Same 250GB NVMe: SAMSUNG 860 EVO SSD 250GB - M.2 SATA Internal… — $149.00 on Amazon as of 2026-10-06 22:15 UTC (price may vary).

View Current Price — $149.00

Original listing (currently unavailable) → Compare to similar ssds & storage

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

Mike Perry — Hardware researcher since 2014. For SSDs and PC storage upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ 3D V-NAND stack, the first in a consumer SSD
✓ M.2 80mm form factor fits thin laptops
✓ DevSleep power state helps battery runtime
✓ SATA III keeps it compatible with older M.2 slots

Cons

✗ SATA III caps throughput far below NVMe drives
✗ 250GB fills fast with modern games installed
✗ M.2 SATA slots are rare on current motherboards
✗ Superseded by newer Samsung EVO generations

Manufacturer description

The Samsung 850 EVO 250GB M.2 SSD (MZ-N5E250BW) brought 3D V-NAND to the consumer M.2 form factor, and it remains a straightforward drop-in upgrade for ultrabooks and small-form-factor builds that take an 80mm M.2 SATA module. Samsung positions this drive as the successor to the 840 EVO, with a three-dimensional chip stack that the company credits for better sustained performance, higher endurance, and lower power draw than the planar NAND it replaced. The SATA III interface means you are working within roughly 6Gbps of bandwidth rather than NVMe speeds, which is exactly what older laptops…

SpecPicks Verdict

SpecPicks scored Samsung 850 EVO using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Compare with similarly-priced alternatives in the ssds & storage category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Is this an NVMe SSD?

No. The 850 EVO M.2 uses the SATA3 interface in an M.2 form factor, so it is an M.2 SATA drive. Confirm your M.2 slot supports SATA keying before buying.

What size M.2 slot does it need?

It is an M.2 80mm (2280) module, which Samsung describes as ideal for mobile computing. Check that your laptop or motherboard accepts an 80mm-length M.2 card.

How much usable storage is 250GB?

250GB is sized for an operating system plus core applications. This 850 EVO M.2 family was also offered in 120GB and 500GB if you need a larger boot or data drive.

Will it help battery life in a laptop?

Samsung lists efficient power management with DevSleep support, a very low-power idle state designed for notebooks, alongside the energy efficiency gains it attributes to 3D V-NAND.

What warranty does it come with?

Warranty terms are not listed in this product data. Check the current Amazon listing or Samsung's support pages for the coverage that applies to your region.

Key Features

The World's First Consumer 3D V-NAND SSD
Ultimate Read/Write Performance
Enhanced Endurance and Reliability
Efficient Power Management supporting DevSleep Mode
Form Factor: M.2 (80mm) - ideal for mobile computing
Capacity: 120GB/250GB/500GB

Full Specifications

Brand	Samsung
Color	Black
Capacity	120GB/250GB/500GB
Interface	SATA3
Model Name	850 EVO
Unit Count	1 Count
Form Factor	M2
Media Speed	520 MB/sec
Model Number	MZ-N5E250BW
Hard-Drive Size	250 GB
Mfr Part Number	MZ-N5E250BW
Number of Items	1
Special Feature	Portable
Item Part Number	MZN5E250BW
Hardware Platform	PC
Installation Type	Internal Hard Drive
Compatible Devices	This drive is compatible with any server that accepts M.2 x 80mm SATA drives.
Data Transfer Rate	6 gigabits_per_second
Additional Features	Portable
Hard Disk Interface	Serial ATA

Ready to buy?

Amazon shows no buyable offer for Samsung 850 EVO - 250GB - M.2 SATA III Internal… at the last check. The closest in-stock match with the same 250GB NVMe is SAMSUNG 860 EVO SSD 250GB - M.2 SATA Internal…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $149.00