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Small rectangular green circuit board M.2 2280 SSD with black chips and gold edge connector

SAMSUNG

SAMSUNG 850 EVO M.2 2280 250GB SATA internal SSD MZ-N5E250BW

SKU CH-CXEN-DDP26 MPN MZ-N5E250BW

A 250 GB SATA M.2 2280 internal SSD with 3D NAND, 512 MB DRAM cache, up to 540 MBps sequential read and 500 MBps sequential write

  • Total capacity250 GB
  • Sequential read speedUp to 540 MB/s
  • Sequential write speedUp to 500 MB/s
  • Interface typeSATA III
  • Form factorM.2 2280
  • Product typeInternal SSD Single Unit Version

Capacity 250GB

  • Up to 540 MB/s sequential read speed accelerates boot and app launch
  • Up to 500 MB/s sequential write speed shortens file saves and installs
  • 97,000 IOPS random read at QD32 keeps multitasking responsive
  • 3D V-NAND with 512 MB DRAM cache enhances endurance and reliability
  • M.2 2280 form factor fits ultra-thin laptops and compact PCs

What this drive is and who it suits

The Samsung 850 EVO M.2 2280 is a 250GB internal SSD built on 3D V-NAND with a SATA interface. It fits ultra-thin laptops and compact desktops that accept the M.2 2280 form factor. The MGX controller and 512MB DRAM cache deliver sequential speeds up to 540 MBps read and 500 MBps write. Random performance reaches 97,000 IOPS read and 89,000 IOPS write at queue depth 32.

What to verify before ordering

Confirm your system has an M.2 slot keyed for SATA signalling and that the 2280 length is supported. The drive is 2.30mm high and 22.00mm wide, so check clearance around the slot. Operating temperature range is 0°C to 70°C and idle power is 50 mW. Samsung supplies Data Migration and Magician software for cloning and management.

Upgrade path and when it makes sense

This SSD replaces a 2.5-inch SATA drive or an older M.2 SATA module with higher capacity and 3D NAND endurance. The jump is worth it when moving from a hard drive or a planar NAND SSD to gain faster boot, lower active power averaging 2.4W and shock resistance rated at 1500G.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $91.99
Cheaper than about 75% of the 1,994 comparable items (median $180.49).
Total capacity 250 GB
Lower than about 84% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 540 MB/s
Lower than about 83% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $367.96 per TB
Pricier than about 81% of the 1,362 comparable items (median $165.50 per TB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSAMSUNG
Product line850 EVO
Model nameMZ-N5E250BW
Total capacity250 GB
Product typeInternal SSD Single Unit Version
Performance
Sequential read speedUp to 540 MB/s
Sequential write speedUp to 500 MB/s
Random read (4K)Up to 97,000 IOPS (4 KB, QD32)
Up to 10,000 IOPS (4 KB, QD1)
Random write (4K)Up to 89,000 IOPS (4 KB, QD32)
Up to 40,000 IOPS (4 KB, QD1)
Storage
NAND flash type3D NAND
Controller chipMGX
Cache memory512 MB DRAM
Ports & slots
Interface typeSATA III
Power
Idle power draw50 mW
Active power drawAverage: 2.4 W
Maximum: 3.7 W (Burst mode)
Size & build
Form factorM.2 2280
Overall height2.3 mm
Overall width22 mm
Product depth80 mm
Product weight0.09 lb (0.04 kg)
Shipping weight0.09 kg
Package size140 × 102 × 25 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Max shock tolerance1500G & 0.5 ms (Half sine)

Other versions of this model

3 more in the same range

Questions about this item

Does the single-unit version include a mounting screw or do I need to supply my own?

The single-unit version contains only the 250 GB M.2 2280 drive; the mounting screw is not included and must be sourced from the laptop or motherboard kit.

The 850 EVO range has several capacities — why choose the 250 GB model?

The 250 GB model delivers the same 540 MBps read and 500 MBps write speeds as larger capacities while keeping cost lower for OS and core applications.

In a real laptop the box says up to 540 MBps — what sustained throughput should I expect?

Sequential reads reach up to 540 MBps and writes up to 500 MBps over SATA III; random 4 KB reads hit 97,000 IOPS at QD32 and writes 89,000 IOPS at QD32.

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