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Green rectangular mSATA SSD with black label and gold edge connector

SAMSUNG

SAMSUNG 840 EVO MZ-MTE120BW 120GB mSATA internal SSD

SKU CH-G95D-BVZZC MPN MZ-MTE120BW

A 120GB mSATA internal SSD with SATA III interface delivering up to 540MB/s sequential read and 410MB/s sequential write speeds

  • Total capacity120 GB
  • Sequential read speedUp to 540 MB/s
  • Sequential write speedUp to 410 MB/s
  • Interface typeSATA III
  • Form factormSATA
  • Product typeInternal Solid State Drive (SSD)

Capacity 120GB

  • Fast boot and load times with sequential read up to 540MB/s
  • Responsive multitasking from random read up to 94,000 IOPS
  • Quick file saves via sequential write up to 410MB/s
  • Low power draw extends laptop battery life at 0.055W idle
  • Fits thin ultrabooks and tablets with 3.8mm mSATA form factor

Compact mSATA drive for older laptops

The Samsung 840 EVO MZ-MTE120BW is a 120GB internal SSD built for consumer devices that accept the mSATA form factor. It uses TLC memory and a Samsung MEX controller on a SATA III interface to deliver solid-state responsiveness in space-constrained notebooks or small form-factor PCs.

Low power draw and silent operation

With no moving parts the drive runs completely silent and draws only 0.055W at idle and 0.145W during active use. It is rated to operate between 0°C and 70°C with humidity tolerance from 5% to 95%, so thermals stay manageable in tight chassis without additional cooling.

Thin profile fits standard mSATA slots

The board measures 3.8mm high, 30.0mm wide and 50.8mm deep, matching the mSATA specification for direct installation in compatible sockets. Rated at 1,500,000 hours MTBF, the drive is designed for long-term reliability in everyday consumer workloads.

How it compares

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

Price $87.99
Cheaper than about 76% of the 1,994 comparable items (median $180.49).
Total capacity 120 GB
Lower than about 95% 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 $733.25 per TB
Pricier than about 90% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product line840 EVO
Model nameMZ-MTE120BW
Total capacity120 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 540 MB/s
Sequential write speedUp to 410 MB/s
Random read (4K)Up to 94,000 IOPS
Random write (4K)Up to 35,000 IOPS
Storage
NAND flash typeTLC
Controller chipSamsung MEX Controller
Ports & slots
Interface typeSATA III
Power
Idle power draw0.055 W
Active power draw0.145 W
Size & build
Form factormSATA
Overall height3.8 mm
Overall width30.0 mm
Product depth50.8 mm
Product weight9g
Shipping weight0.03 kg
Package size145 × 99 × 23 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Operating humidity range5% to 95%
More details
Mean time between failures1,500,000 h

Other versions of this model

3 more in the same range

Questions about this item

How do I install the mSATA 120GB drive and what step is often missed?

Insert the MZ-MTE120BW into the mSATA slot at a slight angle, press down, and secure it with the retention screw; the step often missed is fastening that screw, which keeps the drive from lifting under vibration.

What maintenance or replacement will the 120GB TLC SSD need later?

The Samsung MEX controller handles wear-leveling and TRIM automatically, so no user maintenance is required; replacement is only needed if the 1,500,000-hour MTBF is exceeded or the drive reaches its write endurance limit.

What limit appears first during sustained writes on the 840 EVO mSATA?

The sequential write speed caps at 410MB/s, and the TLC NAND’s slower program cycles become the bottleneck before the SATA III interface or the 0.145W active power draw does.

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