Samsung 850 PRO
Expert rating7.4 / 10
- Interface:
- SATA III (6Gb/s)
- Sequential Read:
- Up to 550 MB/s
- Capacity Options:
- 128GB
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Manufacturer: Samsung Last updated: 2026-09-12
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Samsung 850 PRO (SATA III/MLC/Legendary High-Endurance Legacy Drive) Review
Samsung 850 PRO SATA III SSD, a legendary high-endurance drive still referenced in storage circles for its original 10-year warranty and MLC durability.
This is one of the most-cited SSDs in enthusiast forum history — its 10-year warranty was practically unheard of at launch, and it earned that confidence with genuinely excellent MLC endurance. It's a decade old at this point, so it's not a rational purchase for a new build purely on economics, but it still turns up in older systems running exactly as well as the day it was installed.
Comparison to Alternatives
Against its own sibling the Samsung 850 EVO, the PRO variant offers meaningfully higher endurance thanks to MLC NAND, though at a noticeable price premium that's hard to justify given modern alternatives. Compared with a current SATA drive like the Kingston KC600, the 850 PRO's real-world speed is essentially identical (both are SATA-interface capped), with the newer drive winning on price and available capacity.
Specifications
Identity
| Brand | Samsung |
|---|---|
| Model Number | 850 PRO |
| Series | 850 PRO |
Interface and form
| Bus Interface | SATA III (6Gb/s) |
|---|
Sequential performance
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 520 MB/s |
NAND
| NAND Type | Samsung V-NAND 2-bit MLC |
|---|
Physical and commercial
| Warranty | 10 Years |
|---|
| Capacity Options | 128GB, 256GB, 512GB, 1TB, 2TB |
|---|
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7.4 / 10
A legendary high-endurance SATA drive still referenced today, though newer drives beat it on price and available capacity.
Best for
- Legacy system upgrades
- Endurance-focused SATA use cases
- Replacing an original 850 PRO
Not for
- New-build purchases
- Capacity-per-dollar shoppers
- NVMe-capable systems
FAQs
What are the key specifications of the Samsung 850 PRO (SATA III/MLC/Legendary High-Endurance Legacy Drive)?
The Samsung 850 PRO (SATA III/MLC/Legendary High-Endurance Legacy Drive) is a component from Samsung. Key specs: Interface SATA III (6Gb/s), Sequential Read 550, Sequential Write 520, NAND Type Samsung V-NAND 2-bit MLC, Capacity Options 128GB, 256GB, 512GB, 1TB, 2TB.
Who is the Samsung 850 PRO (SATA III/MLC/Legendary High-Endurance Legacy Drive) best suited to?
It suits legacy system upgrades, endurance-focused sata use cases, replacing an original 850 pro.
What are the drawbacks of the Samsung 850 PRO (SATA III/MLC/Legendary High-Endurance Legacy Drive)?
It is a poor fit for new-build purchases, capacity-per-dollar shoppers, nvme-capable systems.
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