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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

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Availability: Only 3 left in stock, order soon!
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Arrives Monday, Apr 27
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Capacity: 4TB


Style: New Generation - M.2 2280


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 SANDISKs 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.

Description

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.

Digital Storage Capacity: 4 TB


Hard Disk Interface: PCIE x 4


Connectivity Technology: PCIe Gen4 NVMe


Brand: Sandisk


Special Feature: PCIe Gen4 NVMe


Hard Disk Form Factor: 22 Millimeters


Hard Disk Description: Solid State Drive


Compatible Devices: Desktop, Handheld Gaming Console, Laptop


Installation Type: Internal Hard Drive


Color: Black


Digital Storage Capacity: 4 TB


Hard Disk Interface: PCIE x 4


Connectivity Technology: PCIe Gen4 NVMe


Additional Features: PCIe Gen4 NVMe


Hard Disk Form Factor: 22 Millimeters


Compatible Devices: Desktop, Handheld Gaming Console, Laptop


Specific Uses For Product: Gaming, Multimedia, Personal


Read Speed: 7000 Megabytes Per Second


Media Speed: 6900 MB/s


Data Transfer Rate: 7000 Megabytes Per Second


Form Factor: M.2 2280


Hardware Connectivity: PCIE x 4


Hard-Drive Size: 4 TB


Item Weight: 0.01 Pounds


Item Dimensions L x W x Thickness: 3.14"L x 0.86"W x 0.04"Th


Number of Items: 1


Unit Count: 1.0 Count


Customer Package Type: Standard Packaging


Brand: Sandisk


Model Number: WDS400T4X0E-00CJA0


Hard Disk Description: Solid State Drive


Built-In Media: WD_BLACK SN7100 NVMe SSD


Model Name: WD_BLACK SN7100 NVMe SSD


Manufacturer: Sandisk Technologies, Inc.


Global Trade Identification Number: 82


UPC: 718037902982


Warranty Description: 3 Year Limited Manufacture


Installation Type: Internal Hard Drive


Color: Black


Enclosure Material: Information Not Available


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Apr 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • WD_BLACK 4TB SN7100 – Best NVMe money can buy
Capacity: 4TB Style: New Generation - M.2 2280
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I bought the WD_BLACK SN7100 4TB to replace my smaller WD SN570 Gen3 boot drive. Installation was straightforward i.e just slide it into the M.2 slot, and done. Performance Using CrystalDiskMark V9.5.0, I consistently saw around 7000 MB/s read and 6200 MB/s write on the 4 GB test, and about 6800 MB/s write on the longer 64 GB run which was remarkably close to the advertised specs. Random 4K read/write speeds also feel quick, and Windows 11 boots in roughly 5–6 seconds. However, I did observe some throttling when running 64GB Q8T1 test with temperature reaching 59°C and speed dropping to 4500MB/S. Though, it's still faster than any Gen3 drive. App launches are near-instant. I haven’t tested large game installs (like 100 GB titles) since this particular system isn’t built for heavy gaming, but for productivity and content creation, it's been great so far. Thermals and Efficiency Idle temperature hovers around 30°C but under sustained load, temperatures could reach up to 60°C and this is without a heatsink(except some black material came with the original laptop drive) which for a Gen4 drive is exceptional. The controller here isn’t just fast but impressively power-efficient. Compared to my older Samsung 970 EVO Plus Gen3, this one runs at a lower wattage. It’s a great fit for laptops or compact builds where cooling headroom is limited. Storage Capacity and Software Usable space comes out to about 3.63 TB, which is standard for 4 TB drives due to the difference between base-10 and base-2 (1000 vs 1024) calculations. My only gripe is WD’s software. The legacy Dashboard app has been replaced by Kitfox, and the 4 TB SN7100 isn’t fully recognized yet. Hopefully, WD or SanDisk pushes an update soon, as the drive itself is fantastic. Also, it could be formatted for Windows, Linux or MacOS. Value and Endurance This drive uses TLC 3D NAND, unlike the WD SN5000 which is QLC-based(4TB version) and often priced just a few dollars cheaper. The SN7100 offers an endurance rating of up to 2400 TBW, which should easily outlast multiple system builds. If you plan to use it in a server or NAS, I’d suggest either keeping a backup drive(RAID 1) or going with WD Red SN700, which is designed for heavier write cycles. While it’s not the cheapest 4 TB Gen4 SSD, the performance easily rivals the Samsung 990 Pro and Crucial T500, with the added benefit of lower power consumption and cooler thermals. Verdict If you’re upgrading from an HDD or even a SATA SSD, the SN7100 feels like a quantum jump. It combines blazing fast speed with stable thermals, and generous capacity in one package. This is an excellent choice for prosumers(creators, gamers) or anyone who's looking for a reliable performance with minimal heat output. To conclude, if you're looking for a drive that stays cool, handles large transfers without any hiccups, and just works; look no further. Highly recommended. ... show more
Reviewed in the United States on October 22, 2025 by ProudAmerican
    • Fast, Reliable SSDs — Plug and Play with QNAP
Capacity: 500GB Style: New Generation - M.2 2280
I picked up a pair of WD_Black SN7100 500GB NVMe SSDs for my new QNAP NAS a while back, and they’ve been excellent. The NAS recognized them instantly when I plugged them in — no fuss, no formatting issues, just ready to go. Performance has been solid, with fast read/write speeds that make the NAS snappy for both storage and media tasks. Build quality feels good, and they run cool even under consistent load. If you’re looking for reliable NVMe SSDs for your NAS or storage setup, these WD_Black drives are a solid choice. ... show more
Reviewed in the United States on February 4, 2026 by Ducky124
    • Excellent Reliability and Speed – Proven Under Continuous Use
Capacity: 2TB Style: New Generation - M.2 2280
I have been using this SSD with Debian Linux, and my experience has been very positive, especially in terms of reliability. Over the past two years, I have not experienced any failures, crashes, or data loss, even under heavy workloads. Performance remains consistently fast, and the system stays stable during file transfers and daily operations. I purchased two of these drives, and both have performed equally well, demonstrating strong consistency and quality. Both my laptop and my wife’s laptop run 24/7, and we rarely power them off, so these drives have been under continuous use. We work in software engineering and infrastructure/server environments, where reliability is critical. Even under these demanding conditions, the drives have remained stable and dependable. I would definitely recommend buying this SSD. ... show more
Reviewed in the United States on March 24, 2026 by JOSE R.
    • Very good NVMe.
Capacity: 2TB Style: New Generation - M.2 2280
Amazing SSD, bought it right after it released for a very good price. (RIP pc part prices) Upgraded from a terrible 500GB SSD to this, storage is easily one of the most important things to make a computer feel snappy and responsive, it has amazing performance and nearly 1 full year later the drive is at 99% health according to the WD Dashboard. ... show more
Reviewed in the United States on December 10, 2025 by Dylan
    • A Solid Storage Upgrade for Laptops
Capacity: 2TB Style: New Generation - M.2 2280
Installing was straightforward and it worked like a charm. Now I can install ten times the games I used to on my MSI
Reviewed in the United States on March 20, 2026 by Kevin Marquez
    • Wish the prices weren't inflated.
Capacity: 2TB Style: New Generation - M.2 2280
Ordered 3 of these for my pc and theyve been greater than i thought. I came from a hard drive so the speeds were really low and these blow them out of the water. the speeds are stupid fast and the bootup is too. I just wish prices weren't so high right now.
Reviewed in the United States on February 24, 2026 by Lenaord
    • Great Drive!
Capacity: 2TB Style: New Generation - M.2 2280
Easy to install and a reasonable amount of storage for the price. My only critique would be that I wish it came with a screw to install in the m2 slot but thats me nitpicking.
Reviewed in the United States on March 7, 2026 by Cole
    • Great for Proxmox
Capacity: 1TB Style: New Generation - M.2 2280
Short and sweet review, this drive is perfect for my use case. I wanted something cheaper, still performant, and resilient. Normally it would be hard to find something that fits these three categories well but this WD Black NVMe SSD drive has been running in my high throughput proxmox cluster nonstop on a main node for over six months now with zero issues at all. It even handles heat well, though it’s slim enough it would easily fit under a heat sink if ones on your board you’re installing this on. Overall, I highly recommend this drive especially for hobbyist server use cases like Proxmox. ... show more
Reviewed in the United States on February 13, 2026 by Hadley

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