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Samsung 860 PRO 2.5-inch SATA III SSD
Samsung

Samsung 860 PRO

Expert rating7.7 / 10

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Interface:
SATA III (6Gb/s)
Sequential Read:
Up to 560 MB/s
Capacity Options:
256GB, 512GB, 1TB, 2TB, 4TB

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Manufacturer: Samsung Last updated: 2026-09-12

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Samsung 860 PRO Review

Samsung 860 PRO SATA III SSD with MLC NAND, a high-endurance legacy drive for SATA systems that still need serious write durability.

MLC NAND on a SATA drive is an odd combination in today's market, the interface caps peak speed well below what the NAND could theoretically support, but for write-heavy workloads on older SATA-only hardware, that endurance headroom is exactly the point. Think NAS caching duty or a server that can't be upgraded to NVMe, where reliability under constant writes matters more than chasing benchmark numbers.

Comparison to Alternatives

Against Kingston's KC600, the 860 PRO offers higher-rated endurance thanks to MLC NAND, though the KC600 counters with more modern encryption and firmware support. Compared with its own sibling the Samsung 860 EVO, the PRO variant is the clear choice for anyone specifically prioritizing sustained write durability over price.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7.7 / 10

A high-endurance MLC SATA drive that remains relevant for heavy write workloads on SATA-only systems.

Best for

  • High-endurance SATA workloads
  • NAS or server caching on SATA-only hardware
  • Professionals needing write durability

Not for

  • Casual everyday users (overkill)
  • NVMe-capable builds
  • Budget-focused shoppers

Specifications

What these specs mean
Speed Score
5.1/10

How fast this drive is among internal SSDs, rated from its read and write speeds, cache and NAND type.

Identity

BrandSamsung
Model Number860 PRO
Series860 PRO

Interface and form

Drive TypeInternal
Bus InterfaceSATA III
ProtocolAHCI
Form Factor2.5-inch
Console CompatibilityNone Stated

Sequential performance

Sequential Read560 MB/s

Controller and cache

ControllerSamsung MJX
Controller VendorSamsung
DRAM CacheDRAM

NAND

NAND TypeMLC
NAND VendorSamsung

Endurance and reliability

MTBF1500000 hours

Power and thermals

HeatsinkNot Included

Features

Hardware EncryptionAES-256 TCG Opal 2.0
Toolbox SoftwareSamsung Magician

Physical and commercial

Warranty5 Years

FAQs

What are the key specifications of the Samsung 860 PRO (SATA III/MLC/High-Endurance Legacy SATA Drive)?

Key specs for the Samsung 860 PRO: Sequential Read 560 MB/s, Capacity Options 256GB, 512GB, 1TB, 2TB, 4TB, Bus Interface SATA III, NAND Type MLC, DRAM Cache DRAM, Form Factor 2.5-inch.

Who is the Samsung 860 PRO (SATA III/MLC/High-Endurance Legacy SATA Drive) best suited to?

Best suited to: High-endurance SATA workloads; NAS or server caching on SATA-only hardware; Professionals needing write durability.

What are the drawbacks of the Samsung 860 PRO (SATA III/MLC/High-Endurance Legacy SATA Drive)?

Not the best fit for: Casual everyday users (overkill); NVMe-capable builds; Budget-focused shoppers.

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