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Green circuit board mSATA SSD with black controller and silver label

SAMSUNG

SAMSUNG 840 EVO MZ-MTE1T0BW 1TB mSATA internal SSD

SKU CH-EEP7-ZZH0J MPN MZ-MTE1T0BW

A 1TB mSATA internal SSD delivering up to 540MB/s sequential read and 520MB/s sequential write for consumer systems

  • Total capacity1 TB
  • Sequential read speedUp to 540 MB/s
  • Sequential write speedUp to 520 MB/s
  • Interface typeSATA III
  • Form factormSATA
  • Product typeInternal Solid State Drive (SSD)

Capacity 1TB

  • Fast boot and load times with up to 540MB/s sequential read
  • Snappy multitasking from up to 98,000 IOPS random read
  • Long service life backed by 1,500,000 hours MTBF
  • Low power draw extends laptop battery at 0.055W idle
  • Slim 3.8mm mSATA form factor fits thin ultrabooks

1TB mSATA SSD for consumer systems

The Samsung 840 EVO MZ-MTE1T0BW provides 1TB of storage in an mSATA form factor. It uses TLC NAND and a Samsung MEX controller over a SATA III interface. The drive is intended for consumer notebooks and small-form-factor desktops that accept mSATA modules.

Sustained workload behaviour

Sequential reads reach up to 540MB/s and writes up to 520MB/s. Random 4KB performance is rated at up to 98000 IOPS read and 90000 IOPS write. Active power draw is 0.145W and idle power is 0.055W, so thermal output stays low during extended transfers. The controller manages wear across the TLC array for consistent throughput.

Build quality and daily implications

The module measures 3.8mm in height, 30.0mm wide and 50.8mm deep, weighing 9g, so it fits slim mSATA slots without clearance issues. MTBF is rated at 1500000 hours. Operating temperature spans 0°C to 70°C with humidity tolerance of 5% to 95%. The SATA edge connector ensures broad compatibility with existing mSATA sockets.

How it compares

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

Price $455.99
Pricier than about 78% of the 1,994 comparable items (median $180.49).
Total capacity 1 TB
Typical for this category: the median of 1,368 items is 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 $455.99 per TB
Pricier than about 85% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product line840 EVO
Model nameMZ-MTE1T0BW
Total capacity1 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 540 MB/s
Sequential write speedUp to 520 MB/s
Random read (4K)Up to 98,000 IOPS
Random write (4K)Up to 90,000 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 weight0.06 kg
Package size144 × 98 × 22 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 much power does the 840 EVO mSATA 1TB draw when active all day?

The drive consumes 0.145W during active operation and 0.055W at idle, so it adds minimal heat to a laptop or small-form-factor system.

Does my motherboard need an mSATA slot to install this 1TB drive?

Yes, the drive uses the mSATA form factor and a SATA III interface, so the host must provide a dedicated mSATA connector.

Will the 840 EVO mSATA work in an older laptop that only supports SATA II speeds?

The SATA III interface is backward compatible with SATA II ports; the drive will function normally at the slower link speed.

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