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Small green circuit board M.2 2280 SSD with black chips

SAMSUNG

SAMSUNG 850 EVO M.2 2280 120GB SATA internal SSD MZ-N5E120BW

SKU CH-5T9X-1E197 MPN MZ-N5E120BW

A 120GB SATA M.2 2280 internal SSD with 3D NAND delivering up to 540 MBps read and 500 MBps write speeds

  • Device TypeInternal SSD Single Unit Version
  • Form FactorM.2 2280
  • Capacity120GB
  • Memory Components3D NAND
  • InterfaceSATA III
  • ControllerMGX

Options 120GB

  • Sequential reads up to 540 MBps for fast boot times
  • Sequential writes up to 500 MBps speed up file saves
  • Random reads up to 97000 IOPS keep apps responsive
  • 3D NAND memory improves endurance and reliability
  • M.2 2280 form factor fits ultra-thin laptops and PCs

Samsung 850 EVO 120GB M.2 SATA SSD

The Samsung 850 EVO MZ-N5E120BW is a 120GB internal solid-state drive built on 3D NAND technology. It uses the M.2 2280 form factor and connects through a SATA III interface. Sequential reads reach up to 540 MBps and writes up to 500 MBps. Random 4KB performance hits 97,000 IOPS read and 89,000 IOPS write.

Suits SATA M.2 slots only

This drive fits laptops and desktops with an M.2 slot wired for SATA signalling. It will not operate in slots that only accept PCIe signalling. The 2.30mm height matches standard single-sided M.2 clearance. Buyers needing higher capacity or PCIe speeds should consider other models.

Interface decides compatibility

The defining specification is the SATA III interface combined with the M.2 2280 form factor. Verify that the host system's M.2 slot supports SATA before purchase. The MGX controller and 3D NAND deliver the quoted speeds within that SATA link.

Highlights

  • Sequential reads up to 540 MBps for fast boot times
  • Sequential writes up to 500 MBps speed up file saves
  • Random reads up to 97000 IOPS keep apps responsive
  • 3D NAND memory improves endurance and reliability
  • M.2 2280 form factor fits ultra-thin laptops and PCs

Specifications

BrandSAMSUNG
Series850 EVO
ModelMZ-N5E120BW
Device TypeInternal SSD Single Unit Version
Form FactorM.2 2280
Capacity120GB
Memory Components3D NAND
InterfaceSATA III
ControllerMGX
Max Sequential ReadUp to 540 MBps
Max Sequential WriteUp to 500 MBps
4KB Random ReadUp to 97,000 IOPS
4KB Random WriteUp to 89,000 IOPS
Height2.30mm
Width22.00mm
Depth80.00mm
Weight0.09 lb.
Shipping weight0.06 kg
Package size142 × 97 × 20 mm

Other versions of this model

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Questions about this item

Will the 120 GB 3D NAND drive slow down once its SLC cache fills during a long write?

The MGX controller manages 3D NAND directly; sustained writes run at up to 500 MBps once the cache is exhausted.

How warm does the M.2 2280 module get and does it need extra cooling during all-day use?

The 2.30 mm thick board draws little power; typical laptop airflow keeps it within normal operating temperature without a heatsink.

My laptop has an M.2 slot — what must it provide for this SATA III drive to work?

The slot must support SATA signalling and accept a 22 mm wide, 80 mm long module.

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