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WD_Black SN7100 1TB NVMe SSD - Gen4 PCIe, M.2 2280, Up to 7,250 MB/s Read Speed, Up to 6,900 MB/s Write Speed, Next Gen TLC 3D NAND, for Laptops, Handheld Gaming Devices - WDS100T4X0E
Sandisk

Sandisk WD_Black SN7100 1TB NVMe SSD (WDS100T4X0E)

Bottom line: The Sandisk WD_Black SN7100 1TB NVMe SSD ($199.00 on Amazon as of 2026-10-06): Up to 7,250MB/s read and 6,900MB/s write on PCIe Gen4; main trade-off: peak 7,250MB/s speeds only on 1-2TB models, not smaller ones.

$199.00

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Buy on Amazon — $199.00 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 7,250MB/s read and 6,900MB/s write on PCIe Gen4
  • ✓ Up to 35% faster than the previous generation
  • ✓ Up to 100% better power efficiency, good for handhelds
  • ✓ Standard M.2 2280 fits most laptops and handheld consoles

Cons

  • ✗ Peak 7,250MB/s speeds only on 1-2TB models, not smaller ones
  • ✗ WD_BLACK Dashboard software is Windows-only
  • ✗ Gen4 interface, so no Gen5 headroom for future builds
  • ✗ No heatsink listed, may need one in a hot laptop chassis

Manufacturer description

The WD_BLACK SN7100 1TB NVMe SSD is built for gamers who need speed in a laptop or handheld, delivering up to 7,250MB/s sequential read and 6,900MB/s write on the 1-2TB models over a PCIe Gen4 interface. That is up to a 35% jump over the previous generation SN7100-class drive, and it lands in the standard M.2 2280 form factor that Steam Deck, ROG Ally, and most modern gaming laptops accept. Storage is only half the story here: the SN7100 uses Sandisk's next-generation TLC 3D NAND and delivers up to 100% better power efficiency than the prior generation, which matters when you are running off…

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SpecPicks Verdict

SpecPicks scored Sandisk WD_Black SN7100 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

Will the WD_BLACK SN7100 work in a Steam Deck or other handheld?

It is an M.2 2280 PCIe Gen4 drive purpose-built for laptops and handheld gaming devices, so it fits any handheld that accepts a 2280 module. Check your specific handheld's supported M.2 length before ordering.

How fast is the 1TB SN7100 really?

Up to 7,250MB/s read and 6,900MB/s write, which are the peak rated figures for the 1-2TB models. WD rates that as up to 35% faster than the previous generation drive.

Does it come with a heatsink?

The listed configuration is the bare WDS100T4X0E drive with no heatsink mentioned. If your system lacks an M.2 thermal pad or shield, check the product listing for a heatsink variant.

Will it drain my laptop or handheld battery quickly?

WD rates the SN7100 at up to 100% more power efficiency than the previous generation, which is the main reason it is marketed for battery-powered laptops and handhelds.

Is 1TB enough, or should I size up?

1TB holds several modern AAA installs plus updates and DLC, but titles routinely exceed 100GB. The SN7100 line goes up to 2TB if you keep a large library installed.

Key Features

  • HIGH-OCTANE GAMING. Experience speeds up to 7,250MB/s read and 6,900MB/s write (1-2TB models), with up to 35% faster performance than previous generation.
  • PURPOSE-BUILT. Designed for serious on-the-go gamers, with a PCIe Gen4 interface and SANDISK’s next generation TLC 3D NAND.
  • MORE SPACE FOR FAVORITES AND NEW TITLES. Available in multiple capacities up to 2TB, upgrade to an SSD that gives you tons of storage.
  • MORE TIME TO CLEAR THAT CHECKPOINT. Built with laptops and handheld gaming devices in mind, with up to 100% more power efficiency over the previous generation.
  • DO MORE WITH DASHBOARD. Ensure your drive is optimized for prime performance with the downloadable WD_BLACK Dashboard (Windows only).
  • 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

BrandSandisk
ColorBlack
Model NameWD_BLACK SN7100 NVMe SSD
Read Speed7250 Megabytes Per Second
Unit Count1.0 Count
Form FactorM.2 2280
Media Speed6900 MB/s
Model NumberWDS100T4X0E
Built-In MediaWD_BLACK SN7100 NVMe SSD
Hard-Drive Size1 TB
Mfr Part NumberWDS100T4X0E
Number of Items1
Special FeaturePCIe Gen4 NVMe
Hardware Platformx86_64
Installation TypeInternal Hard Drive
Compatible DevicesDesktop, Handheld Gaming Console, Laptop
Data Transfer Rate7250 Megabytes Per Second
Enclosure MaterialInformation Not Available
Additional FeaturesPCIe Gen4 NVMe
Hard Disk InterfaceNVMe
Full listing titleWD_Black SN7100 1TB NVMe SSD - Gen4 PCIe, M.2 2280, Up to 7,250 MB/s Read Speed, Up to 6,900 MB/s Write Speed, Next Gen TLC 3D NAND, for Laptops, Handheld Gaming Devices - WDS100T4X0E

Ready to buy?

WD_Black SN7100 1TB NVMe SSD - Gen4 PCIe, M.2 2280, Up to 7,250 MB/s Read Speed, Up to 6,900 MB/s Write Speed, Next Gen TLC 3D NAND, for Laptops, Handheld Gaming Devices - WDS100T4X0E 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 — $199.00

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

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WD_Black SN7100 1TB NVMe SSD - Gen4 PCIe, M.2 2280, Up to 7,250 MB/s Read Speed, Up to 6,900 MB/s Write Speed, Next Gen TLC 3D NAND, for Laptops, Handheld Gaming Devices - WDS100T4X0E
$199.00
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