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Small rectangular mSATA SSD with black circuit board and gold edge connector

SAMSUNG

SAMSUNG 850 EVO mSATA 250GB internal SSD

SKU CH-8GBV-7Q2P5

A 250 GB mSATA internal SSD with SATA III interface delivering up to 540 MB/s read and 520 MB/s write speeds

  • Total capacity250 GB
  • Sequential read speedUp to 540 MB/s
  • Sequential write speedUp to 520 MB/s
  • Interface typeSATA III
  • Form factormSATA
  • Product typeInternal SSD Single Unit Version
  • Fast boot and load times from up to 540 MB/s sequential read
  • Responsive multitasking with up to 97,000 IOPS random read
  • Quick file saves and installs via up to 520 MB/s sequential write
  • Low power draw extends laptop battery life at 50 mW idle
  • Slim mSATA form factor fits ultra-thin notebooks at 4.90 mm height

Samsung 850 EVO mSATA 250GB

The Samsung 850 EVO is an internal solid-state drive built in the mSATA form factor with a 250GB capacity. It connects through a SATA III interface and uses the MGX controller. The drive includes data migration software to simplify moving existing files and operating systems onto the new storage.

Upgraders with mSATA slots

This drive suits owners of laptops or compact desktops that have a dedicated mSATA slot and need a capacity boost without changing the motherboard. Systems that only accept 2.5-inch SATA drives or M.2 modules cannot use this mSATA module.

SATA III interface

The SATA III interface determines whether this SSD is compatible with the host system. The drive delivers sequential reads up to 540 MBps and writes up to 520 MBps with random performance of 97,000 IOPS read and 88,000 IOPS write. Active power draw reaches 3.5W for reads and 4.3W for writes.

How it compares

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

Price $75.99
Cheaper than about 80% of the 1,994 comparable items (median $180.49).
Total capacity 250 GB
Lower than about 84% 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 $303.96 per TB
Pricier than about 76% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product line850 EVO
Model nameMZ-M5E250BW
Total capacity250 GB
Product typeInternal SSD Single Unit Version
Performance
Sequential read speedUp to 540 MB/s
Sequential write speedUp to 520 MB/s
Random read (4K)Up to 97,000 IOPS
Random write (4K)Up to 88,000 IOPS
Storage
Controller chipMGX
Ports & slots
Interface typeSATA III
Power
Idle power draw50mW
Active power drawRead: 3.5 W
Write: 4.3 W
Size & build
Form factormSATA
Overall height4.9 mm
Overall width29.9 mm
Product depth50.8 mm
Product weight0.02 lb (0.01 kg)

Questions about this item

Does my laptop need an mSATA slot to install this MZ-M5E250BW?

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

Will this 850 EVO work in a system that only supports SATA II speeds?

The drive is backward compatible with SATA II ports, though sequential reads will be limited to the older bus maximum instead of the rated 540 MBps.

How can I confirm the SSD is delivering its rated 540 MBps read performance after installation?

Run a sequential-read benchmark such as CrystalDiskMark and verify results approach the 540 MBps specification on a SATA III link.

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