US
WD_BLACK

WD_BLACK SN850X 2TB NVMe SSD with Heatsink

  • Internal Solid State Drive
4.8/ 5 on Amazon15,700Amazon ratings400+bought last month2.7ProductDome score
  • Better rated than 63%
  • More reviewed than 79%
Limited evidenceUpdated 6 days agoAmazon data + ProductDome analysis · methodology
Best forYou have an open pcie gen4 m.2 slot and want high sustained read/write speeds

Strong raw speed for a desktop NVMe upgrade, but check current-generation status first since WD lists this model as succeeded by a newer drive.

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Sizes Available

1TB2TB4TB8TB

Styles Available

SN850X

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ProductDome scorecard

How it ranks among the 19 internal solid state drives we track

2.7/ 5ProductDome scoreLimited evidence
Owner satisfaction · 56% of scorecategory median 4.7★4.8

4.8★ across 15,700 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 6,200 ratings5.0

15,700 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.5

400+ bought on Amazon last month.

Data quality · 11% of score2.5

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 19 internal solid state drives we track - how the scorecard works · full internal solid state drives data report. Confidence: limited - incomplete product information.Updated 6 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

This WD_BLACK drive packs 2TB into the M.2 2280 form factor with an attached heatsink, rated up to 7,300MB/s read and 6,300MB/s write. It's aimed at desktop gaming builds and workstations with a free PCIe Gen4 slot.

The heatsink is built into this version, which matters for sustained transfers since NVMe drives at this speed class throttle under heat without one, though it also means the drive will not fit in a slot with limited clearance, like most laptops or a console bay with its own cooling cover. Worth flagging directly from the listing: WD states this specific model has been succeeded by a newer generation drive from the SanDisk lineup, so buyers should confirm they are getting the SN850X rather than assuming it's the current flagship.

  • 2tb capacity, m.2 2280 form factor
  • Up to 7,300 mb/s read, 6,300 mb/s write
  • Heatsink attached for sustained transfer speeds
  • Built for gaming pc and workstation upgrades

Who it's for

A desktop gaming build or workstation with a free PCIe Gen4 M.2 slot is where this drive belongs, including as a PS5 expansion drive if the heatsink clears the console's bay. Anyone wanting WD's current flagship model specifically should check generation status first, since the listing marks this one as replaced.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • High rated read/write speeds for a gaming pc or workstation
  • Heatsink attached, no separate cooling purchase needed
What to check first
  • Heatsink height won't clear most laptop m.2 slots
  • Wd lists this exact model as replaced by a newer generation

Performance notes

Rated speeds reach up to 7,300MB/s read and 6,300MB/s write in the M.2 2280 form factor, with the attached heatsink helping the drive hold those speeds during longer sustained transfers instead of throttling. Because the heatsink is fixed to the drive, it needs a slot with enough clearance, which rules out most laptops and some console expansion bays with their own cooling covers.

Specifications

BrandWD_BLACK

How it compares

This product against the closest alternatives we track in internal solid state drives.

ProductAmazon ratingRatingsProductDome score
WD_BLACK SN850X 2TB NVMe SSD with HeatsinkThis product4.8 / 515,7002.7 / 5
Kingston NV3 1TB M.2 2280 NVMe SSDKingston4.7 / 513,8004.8 / 5
WD_Black SN7100 1TB NVMe SSDWD_Black4.8 / 56,4004.8 / 5
Samsung SSD 870 EVO SATA III 2.5” 1TBSamsung4.8 / 545,5004.7 / 5
Crucial P310 1TB SSDCrucial4.7 / 511,0004.7 / 5
Frequently asked

Questions about the WD_BLACK internal solid state drives

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

Does the WD_BLACK SN850X 2TB fit in a laptop?

Generally no, the attached heatsink adds height that most laptop M.2 slots aren't built to clear.

Is the WD_BLACK SN850X still WD's current flagship SSD?

No, the listing itself states this model has been replaced by a newer generation drive, so it's worth confirming which version you're buying.

What are the rated speeds on the 2TB SN850X?

Up to 7,300MB/s read and 6,300MB/s write.