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SAMSUNG

SAMSUNG 850 EVO MZ-M5E120BW 120GB mSATA internal SSD

SKU CH-K1ZC-VGQA6 MPN MZ-M5E120BW

A 120 GB mSATA internal SSD with 3D NAND delivering up to 540 MB/s read and 520 MB/s write speeds

  • Device TypeInternal SSD Single Unit Version
  • Form FactormSATA
  • Capacity120GB
  • Memory Components3D NAND
  • InterfaceSATA III
  • ControllerMGX

Options 120GB

  • Fast boot and load times with sequential read up to 540 MBps
  • Responsive multitasking from random read up to 95000 IOPS
  • Low idle power draw of 50mW extends laptop battery life
  • Slim 4.90mm height fits ultra-thin notebooks and small form factor PCs
  • Includes Samsung Data Migration software for straightforward drive cloning

120 GB mSATA drive for compact systems

The Samsung 850 EVO MZ-M5E120BW is a 120 GB internal SSD built for ultra-thin laptops and small-form-factor PCs. Its mSATA form factor fits slots where 2.5-inch drives cannot. 3D NAND memory and an MGX controller deliver solid everyday performance for boot, applications and light workloads.

SATA III throughput ceiling

The drive connects through a SATA III interface, so sequential speeds cannot exceed the bus limit of roughly 6 Gbit/s. In practice that caps maximum sequential read at 540 MBps and maximum sequential write at 520 MBps regardless of the NAND or controller capability. Random 4 KB performance reaches 95,000 IOPS read and 88,000 IOPS write within the same constraint.

120 GB capacity decides suitability

With 120 GB of usable space the drive suits a single operating system, core applications and a modest working set. It will not hold large media libraries or multiple virtual machines without external storage. Buyers needing more room should select a higher-capacity model; the interface and form factor remain identical.

Highlights

  • Fast boot and load times with sequential read up to 540 MBps
  • Responsive multitasking from random read up to 95000 IOPS
  • Low idle power draw of 50mW extends laptop battery life
  • Slim 4.90mm height fits ultra-thin notebooks and small form factor PCs
  • Includes Samsung Data Migration software for straightforward drive cloning

Specifications

BrandSAMSUNG
Series850 EVO
ModelMZ-M5E120BW
Device TypeInternal SSD Single Unit Version
Form FactormSATA
Capacity120GB
Memory Components3D NAND
InterfaceSATA III
ControllerMGX
Max Sequential ReadUp to 540 MBps
Max Sequential WriteUp to 520 MBps
4KB Random ReadUp to 95,000 IOPS
4KB Random WriteUp to 88,000 IOPS
FeaturesDara Migration Software: Yes
Power Consumption (Idle)50mW
Power Consumption (Active)Read: 3.5W
Write: 4.3W
Height4.90mm
Width29.90mm
Depth50.80mm
Weight0.01 lb.
Shipping weight0.09 kg
Package size145 × 102 × 28 mm

Other versions of this model

3 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Is the 120GB model the only capacity available for this 850 EVO mSATA drive?

Yes, the supplier lists this MZ-M5E120BW as a single 120GB unit with 3D NAND and a SATA III interface.

What does the 540 MBps sequential read figure mean once the drive is installed in a laptop?

It represents the peak throughput for large-file transfers over the SATA III link; real-world speeds depend on the host controller and workload.

Does the SATA III interface cap the 95,000 IOPS random read performance in practice?

The SATA III 6Gbps bus sets the ceiling, so sustained random IOPS will not exceed what the interface bandwidth allows.

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