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A compact mSATA circuit board with black chips and gold edge connector

SAMSUNG

SAMSUNG 850 EVO mSATA 500GB Internal SSD MZ-M5E500BW

SKU CH-FMSY-WFR7E MPN MZ-M5E500BW

mSATA internal SSD with 500 GB capacity, 540 MB/s read and 520 MB/s write speeds using 3D NAND and SATA III interface

  • Device TypeInternal SSD Single Unit Version
  • Used ForConsumer
  • Form FactormSATA
  • Capacity500GB
  • Memory Components3D NAND
  • InterfaceSATA III

Options 500GB

  • 540 MB/s sequential read accelerates boot and load times
  • 520 MB/s sequential write speeds file saves and installs
  • 97,000 random read IOPS keeps multitasking responsive
  • 88,000 random write IOPS handles heavy write workloads
  • 3D V-NAND with MGX controller delivers endurance in a 4.90 mm mSATA form factor

Product Identity

The Samsung 850 EVO mSATA 500GB is an internal solid-state drive built for consumer laptops and ultra-thin PCs that require the mSATA form factor. It uses 3D V-NAND memory and a SATA III interface to deliver reliable storage in a compact design.

Thermals, Noise and Power

With no moving parts, the drive operates silently and produces negligible heat during typical workloads. Idle power draw is 50mW, rising to 3.5W during read activity and 4.3W during write activity.

Sustained Load Behaviour

Under continuous operation the MGX controller maintains sequential speeds of up to 540 MBps read and 520 MBps write. Random performance reaches 97,000 IOPS read and 88,000 IOPS write, while 3D V-NAND technology supports enhanced endurance for heavy daily use.

Highlights

  • 540 MB/s sequential read accelerates boot and load times
  • 520 MB/s sequential write speeds file saves and installs
  • 97,000 random read IOPS keeps multitasking responsive
  • 88,000 random write IOPS handles heavy write workloads
  • 3D V-NAND with MGX controller delivers endurance in a 4.90 mm mSATA form factor

Specifications

BrandSAMSUNG
Series850 EVO
ModelMZ-M5E500BW
Device TypeInternal SSD Single Unit Version
Used ForConsumer
Form FactormSATA
Capacity500GB
Memory Components3D NAND
InterfaceSATA III
ControllerMGX
Max Sequential ReadUp to 540 MBps
Max Sequential WriteUp to 520 MBps
4KB Random ReadUp to 97,000 IOPS
4KB Random WriteUp to 88,000 IOPS
FeaturesDara Migration Software: Yes
Power Consumption (Idle)50mW
Power Consumption (Active)Read: 3.5W
Write: 4.3W
Height4.90mm
Width29.90mm
Depth50.80mm
Weight0.02 lb.
Shipping weight0.07 kg
Package size142 × 99 × 23 mm

Other versions of this model

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Questions about this item

How do I install the mSATA 500GB drive and which step is commonly missed?

Insert the drive at an angle into the mSATA slot, press it down flat, and secure it with the retention screw; the step often missed is fastening that screw, which prevents the drive from lifting and losing contact.

What maintenance or replacement will the 3D NAND SSD need over time?

No mechanical maintenance is required; the drive relies on the MGX controller and Samsung Magician software to manage wear levelling and firmware updates, so replacement only occurs if the NAND reaches its write endurance limit.

What limit appears first during sustained heavy writes on this SATA III model?

The sequential write ceiling of 520 MBps is reached before the 4.3 W active power draw or thermal limits become a bottleneck.

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