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WD_Black SN850X 8TB 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 - WDS800T2X0E
Sandisk

Sandisk WD_Black SN850X 8TB NVMe SSD (WDS800T2X0E)

Bottom line: The Sandisk WD_Black SN850X 8TB NVMe SSD ($2,114.58 on Amazon as of 2026-10-31 04:20 UTC): 8TB in one M.2 2280 slot - no second drive or install juggling; main trade-off: the 7,300 MB/s read spec is quoted for 1TB-4TB, not the 8TB model.

$2114.58 on Amazon, checked (price may vary)

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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 2026-10-31. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 8TB in one M.2 2280 slot - no second drive or install juggling
  • ✓ Rated up to 7,300 MB/s read, 6,300 MB/s write on PCIe Gen4
  • ✓ Sandisk TLC 3D NAND rather than lower-endurance QLC at this capacity
  • ✓ Game Mode 2.0 plus Predictive Loading, exclusive to the SN850X line

Cons

  • ✗ The 7,300 MB/s read spec is quoted for 1TB-4TB, not the 8TB model
  • ✗ No heatsink option at 8TB - heatsink versions are 1TB and 2TB only
  • ✗ WD_BLACK Dashboard and RGB control are Windows-only
  • ✗ Gen4 interface, so it will not saturate a PCIe Gen5 M.2 slot

Manufacturer description

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. HEATSINK FOR THE WIN: The WD_BLACK SN850X NVMe SSD 1TB and 2TB drives have an optional heatsink version that not only looks awesome but also helps your rig maintain peak performance through the most intense gaming…

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SpecPicks Verdict

SpecPicks scored Sandisk WD_Black SN850X 8TB 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

Does the 8TB SN850X actually hit 7,300 MB/s?

The 7,300 MB/s read and 6,300 MB/s write ratings are the SN850X line's peak figures, and Sandisk specifies the 7,300 MB/s read number for the 1TB-4TB models. Check the manufacturer's spec sheet for the 8TB model's rated sequentials before buying on speed alone.

Will this fit my PS5 or laptop?

It is a standard M.2 2280 NVMe drive, so it fits any slot that accepts that length. Confirm your system supports 8TB NVMe drives and, for consoles, check the current firmware's supported capacity list - the product listing does not state console certification.

Do I need a heatsink for this drive?

The 8TB model is not offered in the optional heatsink version - that is limited to the 1TB and 2TB drives. The SN850X includes Adaptive Thermal Management to manage sustained load, and most modern motherboards ship with an M.2 heatsink you can use.

What kind of NAND does it use, and does that matter?

It uses Sandisk TLC 3D NAND, which stores three bits per cell. TLC generally sustains higher write speeds and endurance than the QLC NAND common in other high-capacity drives, which matters if you move large video or game files regularly.

Is the RGB lighting and monitoring software available on Mac?

No. The WD_BLACK Dashboard, which handles drive health monitoring, RGB customization, and Game Mode 2.0, is Windows only. The drive itself works in any system with a compatible M.2 slot, you just lose the software features.

Key Features

  • 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.
  • HEATSINK FOR THE WIN: The WD_BLACK SN850X NVMe SSD 1TB and 2TB drives have an optional heatsink version that not only looks awesome but also helps your rig maintain peak performance through the most intense gaming sessions.
  • DO MORE WITH WD_BLACK DASHBOARD: The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, lets you customize your RGB lighting, and, exclusively on the SN850X SSD, enables Game Mode 2.0 to transform your gaming experience.
  • FUTURE FORWARD FREATURES: The WD_BLACK SN850X SSD boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM).
  • POWERED BY SANDISK: The WD_BLACK, WD Blue, and WD Green flash products are manufactured by Sandisk Technologies, Inc. or its affiliates and distributed under license from Western Digital Corporation.

Full Specifications

Size8TB
BrandSandisk
ColorBlack
ModelWDS800T2X0E
Warranty5 year limited warranty
UnitCount1
ReleaseDate2024-07-31T00:00:01Z
ManufacturerSandisk Technologies, Inc.
ItemPartNumberWDS800T2X0E
Full listing titleWD_Black SN850X 8TB 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 - WDS800T2X0E

Hardware benchmark data

Ready to buy?

WD_Black SN850X 8TB 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 - WDS800T2X0E 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 — $2,114.58

*Price sourced from Amazon.com. Last updated 2026-10-31. Price and availability subject to change.

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WD_Black SN850X 8TB 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 - WDS800T2X0E
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