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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

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form FactormSATA
  • Capacity120GB
  • Memory ComponentsTLC
  • InterfaceSATA III

Options 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.

Highlights

  • 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

Specifications

BrandSAMSUNG
Series840 EVO
ModelMZ-MTE120BW
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form FactormSATA
Capacity120GB
Memory ComponentsTLC
InterfaceSATA III
ControllerSamsung MEX Controller
Max Sequential ReadUp to 540MB/s
Max Sequential WriteUp to 410MB/s
4KB Random ReadUp to 94,000 IOPS
4KB Random WriteUp to 35,000 IOPS
MTBF1,500,000 hours
Power Consumption (Idle)0.055W
Power Consumption (Active)0.145W
Operating Temperature0°C ~ +70°C
Operating Humidity5% to 95%
Height3.8mm
Width30.0mm
Depth50.8mm
Weight9g
Shipping weight0.03 kg
Package size145 × 99 × 23 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

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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