SanDisk
WD_Black SN7100 4TB NVMe SSD - Gen4 PCIe, M.2 2280, Up to 7,000 MB/s Read Speed, Up to 6,700 MB/s Write Speed, Next Gen TLC 3D NAND, for Laptops, Handheld Gaming Devices - WDS400T4X0E
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
Get ready to game even faster with the WD_BLACK SN7100 NVMe SSD, featuring up to 7,250MB/s read and 6,900MB/s write speeds (1-2TB models), providing up to a 35% performance boost over the previous generation SSD. Engineered with laptops and gaming handhelds in mind, obliterate load times and conquer your heftiest gaming sessions with improved power efficiency at maximum speed. Store more games and still have room for future updates and DLC, with capacities up to 4TB. Upgrade now and ensure you’re ready for the rigors of AI applications and next generation gaming.
SpecPicks Verdict
SpecPicks classifies WD_Black SN7100 4TB NVMe SSD - Gen4 PCIe, M.2 2280, Up to 7,000 MB/s… as a category leader on buyer feedback in the ssds & storage category, based on 5,424 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. SanDisk's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.8★ average across customer reviews
- ✓ Large, well-vetted feedback pool (5,424 reviews)
- ✓ Backed by SanDisk's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
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 4TB, 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).
- AMPLIFY YOUR CONTENT. Up to 2,400TBW endurance (4TB model) for gameplay streaming, speedrun captures, or creating with the latest game engines.
- 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
| Brand | Sandisk |
|---|---|
| Color | Black |
| Model Name | WD_BLACK SN7100 NVMe SSD |
| Read Speed | 7000 Megabytes Per Second |
| Unit Count | 1.0 Count |
| Form Factor | M.2 2280 |
| Media Speed | 6900 MB/s |
| Model Number | WDS400T4X0E-00CJA0 |
| Built-In Media | WD_BLACK SN7100 NVMe SSD |
| Hard-Drive Size | 4 TB |
| Mfr Part Number | WDS400T4X0E |
| Number of Items | 1 |
| Special Feature | PCIe Gen4 NVMe |
| Hardware Platform | PC |
Ready to buy?
WD_Black SN7100 4TB NVMe SSD - Gen4 PCIe, M.2 2280, Up to 7,000 MB/s Read Speed, Up to 6,700 MB/s Write Speed, Next Gen TLC 3D NAND, for Laptops, Handheld Gaming Devices - WDS400T4X0E is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
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