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WD_BLACK SN850X 1TB NVMe SSD - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS100T2X0E
Sandisk

Sandisk WD_BLACK SN850X 1TB NVMe SSD (WDS100T2X0E)

Bottom line: The Sandisk WD_BLACK SN850X 1TB NVMe SSD ($247.00 on Amazon as of 2026-10-06): Up to 7,300 MB/s sequential reads on the 1TB through 4TB models; main trade-off: superseded by the SanDisk Optimus GX PRO 850X per the listing.

$247.00

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Buy on Amazon — $247.00 Compare to similar ssds & storage

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For SSDs and PC storage upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Up to 7,300 MB/s sequential reads on the 1TB through 4TB models
  • ✓ Up to 6,300 MB/s sequential writes for large game and asset transfers
  • ✓ Standard M.2 2280 form factor fits desktops and SFF builds
  • ✓ SanDisk TLC 3D NAND, with the family scaling up to 8TB

Cons

  • ✗ Superseded by the SanDisk Optimus GX PRO 850X per the listing
  • ✗ 1TB fills fast once a few 100GB+ games are installed
  • ✗ Needs a PCIe Gen4 slot to hit the rated 7,300 MB/s
  • ✗ Listing does not state endurance (TBW) or warranty length

Manufacturer description

This product has been replaced by our latest generation. Please search for the SANDISK Optimus GX PRO 850X NVMe SSD TRANFORM YOUR PC: Insane speeds up to 7,300MB/s (1TB - 4TB models) deliver top-tier performance with ridiculously short load times for your gaming PC or workstation — for the elite experience you’ve been waiting for. MORE ROOM FOR MORE GAMES: Capacities up to 8TB built with SANDISK TLC 3D NAND, means you get to keep more games at the ready — and get into the action even faster.

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SpecPicks Verdict

SpecPicks scored Sandisk WD_BLACK SN850X 1TB NVMe SSD using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Sandisk's ssds & storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How fast is the WD_BLACK SN850X 1TB?

It is rated for sequential reads up to 7,300 MB/s and sequential writes up to 6,300 MB/s. The 7,300 MB/s read figure applies to the 1TB through 4TB capacities.

Will it fit my motherboard?

It is an M.2 2280 internal SSD, the standard 22mm x 80mm size used by nearly all desktop motherboards and most compact builds. Confirm your board has a free M.2 slot.

Do I need a PCIe Gen4 slot?

To reach the rated 7,300 MB/s you need a Gen4-capable M.2 slot. It will still work in a Gen3 slot, but sequential throughput will be capped by that interface.

Is 1TB enough for a gaming PC?

1TB covers Windows plus roughly six to ten modern titles depending on install size. The SN850X family goes up to 8TB if you want more games staged at once.

Is this drive still current?

The listing states it has been replaced by the SanDisk Optimus GX PRO 850X NVMe SSD. Compare both listings for current pricing and specs before you buy.

Key Features

  • This product has been replaced by our latest generation. Please search for the SANDISK Optimus GX PRO 850X NVMe SSD
  • TRANFORM YOUR PC: Insane speeds up to 7,300MB/s (1TB - 4TB models) deliver top-tier performance with ridiculously short load times for your gaming PC or workstation — for the elite experience you’ve been waiting for.
  • MORE ROOM FOR MORE GAMES: Capacities up to 8TB built with SANDISK TLC 3D NAND, means you get to keep more games at the ready — and get into the action even faster.

Full Specifications

Size1TB
BrandSandisk
ColorBlack
ModelWDS100T2X0E
Warranty5 year limited warranty
UnitCount1
ReleaseDate2022-08-03T00:00:01Z
ManufacturerSandisk Technologies, Inc.
ItemPartNumberWDS100T2X0E
Full listing titleWD_BLACK SN850X 1TB NVMe SSD - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS100T2X0E

Ready to buy?

WD_BLACK SN850X 1TB NVMe SSD - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS100T2X0E is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $247.00

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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WD_BLACK SN850X 1TB NVMe SSD - M.2 2280, Up to 7,300 MB/s Read speeds, Up to 6,300 MB/s write speeds, Gaming Expansion, High Performance Internal Solid State Drive - WDS100T2X0E
$247.00
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