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Rectangular silver metal 2.5 inch internal SSD with label

SAMSUNG

SAMSUNG 850 PRO 512GB 2.5" SATA Internal SSD MZ-7KE512BW

SKU CH-8300-MXHPK MPN MZ-7KE512BW

A 2.5" SATA internal SSD with 512GB of 3D V-NAND delivering up to 550 MBps read and 520 MBps write speeds

  • Total capacity512 GB
  • Sequential read speedUp to 550 MB/s
  • Sequential write speedUp to 520 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)

Model 512GB 850 PRO

  • Up to 550 MBps sequential read accelerates boot and load times
  • Up to 520 MBps sequential write speeds large file transfers
  • 3D V-NAND with 32 stacked layers delivers higher density and performance
  • AES 256-bit hardware encryption protects data without software overhead
  • 2,000,000-hour MTBF and up to 90,000 random write IOPS ensure long-term reliability

512GB 2.5" SATA SSD for consumer PCs

The Samsung 850 PRO MZ-7KE512BW is a 512GB internal solid state drive built for consumer laptops and desktops. It uses a 2.5 inch form factor and the SATA interface. The drive employs 3D V-NAND with 32 stacked cell layers and a Samsung MEX controller.

SATA III interface limits sequential speed to 550

The SATA III interface caps maximum sequential read at 550 MBps and write at 520 MBps. Random 4KB performance reaches 100,000 IOPS read and 90,000 IOPS write. These figures represent the practical ceiling of the SATA standard for this drive.

2 million hour MTBF defines endurance

A mean time between failures of 2,000,000 hours signals the endurance level of this SSD. AES 256-bit full disk encryption is included for data security. Power draw is 0.05W idle and 3.50W active across an operating range of 0°C to 70°C.

How it compares

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

Price $175.99
Typical for this category: the median of 1,994 items is $180.49.
Total capacity 512 GB
Lower than about 60% 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 $343.73 per TB
Pricier than about 80% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product line850 PRO
Model nameMZ-7KE512BW
Total capacity512 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)Up to 100,000 IOPS
Random write (4K)Up to 90,000 IOPS
Storage
NAND flash type3D NAND
Controller chipSamsung MEX Controller
Ports & slots
Interface typeSATA III
Power
Idle power draw0.05 W
Active power draw3.5 W
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width69.85 mm
Product depth100 mm
Product weight0.14 lb (0.06 kg)
Shipping weight0.11 kg
Package size145 × 145 × 20 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Operating humidity range5% to 95% RH
More details
Mean time between failures2,000,000 h

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 512 GB capacity or a different size?

The 512 GB model provides ample space for an operating system, applications and a large media library while keeping cost lower than higher-capacity versions.

What do the 550 MB/s read and 520 MB/s write speeds mean for everyday use?

They translate to fast boot times, quick application launches and smooth large-file transfers, limited by the SATA III interface ceiling.

How does the SATA III interface affect real-world performance?

The SATA III link caps throughput at around 550 MB/s, so sequential speeds cannot exceed that ceiling even though the controller and 3D V-NAND could go faster.

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