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Small rectangular mSATA SSD with black circuit board and silver label

SAMSUNG

SAMSUNG 860 EVO mSATA 250GB internal SSD

SKU CH-PHBQ-P6VQD

mSATA 250GB SATA III SSD with V-NAND 3-bit MLC, up to 550 MBps read and 520 MBps write, AES 256-bit encryption and 1,500,000-hour MTBF

  • Total capacity250 GB
  • Sequential read speedUp to 550 MB/s
  • Sequential write speedUp to 520 MB/s
  • Interface typeSATA III
  • Form factormSATA
  • Product typeInternal Solid State Drive (SSD)

Capacity 250GB

  • Faster boot and app loading with sequential read up to 550 MBps
  • Quick file saves and installs with sequential write up to 520 MBps
  • Responsive multitasking from random read up to 97000 IOPS
  • Data protected by AES 256-bit encryption TCG Opal IEEE1667
  • Low power draw averages 2.2W active for cooler operation

250 GB mSATA SSD for compact systems

The Samsung 860 EVO MZ-M6E250BW is a 250 GB internal solid-state drive built for consumer laptops and small-form-factor desktops that accept an mSATA module. It uses the SATA III interface and Samsung V-NAND 3-bit MLC memory to deliver solid-state responsiveness without a 2.5-inch bay.

mSATA form factor and SATA III connection

The mSATA card plugs directly into a compatible slot on the motherboard, removing the need for drive cages or data cables. A Samsung MJX controller manages the flash, while Trim support, S.M.A.R.T. monitoring and an auto garbage-collection algorithm maintain consistent performance over the drive's life. AES 256-bit hardware encryption with TCG Opal and IEEE 1667 compliance protects data at rest.

Low power draw and wide temperature range

Average active consumption is 2.2 W with a 4.5 W burst maximum, and the drive operates from 0 °C to 70 °C. With no moving parts it runs silently and withstands shocks of 1,500 G for 0.5 ms. The controller's device-sleep support further reduces energy use during idle periods, and a 1.5 million-hour MTBF rating reflects the design's durability.

How it compares

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

Price $206.99
Pricier than about 55% 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 550 MB/s
Lower than about 70% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $827.96 per TB
Pricier than about 90% of the 1,362 comparable items (median $165.50 per TB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSAMSUNG
Product line860 EVO Series
Model nameMZ-M6E250BW
Part numberMZ-M6E250
Total capacity250 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 550 MB/s
Sequential write speedUp to 520 MB/s
Random read (4K)Random (QD1): Up to 10,000 IOPS; Random (QD32): Up to 97,000 IOPS
Random write (4K)Random (QD1): Up to 42,000 IOPS; Random (QD32): Up to 88,000 IOPS
Storage
NAND flash typeV-NAND 3-bit MLC
Controller chipSamsung MJX Controller
Ports & slots
Interface typeSATA III
Power
Active power drawAverage: 2.2 W
Maximum: 4.5 W (Burst mode)
Size & build
Form factormSATA
Overall height4.83 mm
Overall width29.97 mm
Product depth50.8 mm
Product weight81.65g
In the box
Included itemsSSD only ( new - 0 days, 0 h) in plastivc case, no retail box or other papers
Environment & compliance
Operating temperature range0 °C to 70 °C
Max shock tolerance1,500G & 0.5 ms (Half sine)
More details
Mean time between failures1,500,000 h

Other versions of this model

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Questions about this item

What practical limit does the SATA III interface put on this mSATA drive?

The SATA III link caps real-world throughput at 550 MBps read and 520 MBps write, so the Samsung MJX controller cannot exceed those figures even though the V-NAND 3-bit MLC flash is faster.

What slot and clearance does the mSATA form factor require?

It needs a standard mSATA connector (full-size, not half-size) and a 70 °C operating-temperature envelope, so the motherboard or adapter must expose a full mSATA socket with adequate airflow.

How is the drive initialised and what step do people skip?

After physical insertion, enable AHCI in the BIOS, partition the 250 GB volume in the OS, then run Samsung Magician to activate TRIM, AES 256-bit encryption and the TurboWrite cache — the Magician step is the one most often missed.

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