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WD_BLACK

WD_BLACK 4TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s - WDS400T2X0E

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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Sep 18
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Capacity: 4TB


Style: SSD


Features

  • TRANSFORM YOUR PC. Get top-tier performance and ridiculously short load times for your gaming PC or workstation with insane speeds up to 7,300 MB/s (2)
  • MORE ROOM, MORE GAMES. Capacities up to 8TB (1) built with Western Digital TLC 3D NAND, means you get to download more games and stop deleting your favorites.
  • HEATSINK FOR THE WIN. All capacities have an optional heatsink version to help maintain peak performance through your most intense gaming sessions.
  • DO MORE WITH DASHBOARD. The downloadable WD_BLACK Dashboard (Windows only) monitors your drives health, lets you customize your RGB lighting (heatsink versions only), and can automatically detect games to turn on Game Mode 2.0.
  • FUTURE-FORWARD FEATURES. The WD_BLACK SN850X boasts a powerful suite of features, including Predictive Loading, Overhead Balancing, and Adaptive Thermal Management (ATM).

Description

Strap in for breakneck gaming speeds with the WD_BLACK SN850X NVMe™ SSD. Crush load times and slash throttling, lagging, and texture pop-ins for a smooth, fast experience that lets you compete at your absolute peak. This purpose- built gaming drive comes in capacities of 1TB to 4TB(2), with an optional heatsink on the 1TB and 2TB drives to help sustain top-end performance for more consistent gameplay. With the advanced features of Game Mode 2.0 (Windows only) automatically turned on by the WD_BLACK Dashboard and supporting Microsoft's DirectStorage technology, the WD_BLACK SN850X NVMe SSD delivers top-tier performance to keep you playing, streaming, recording, and dominating the game. (2) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.

Digital Storage Capacity: 4000 GB


Hard Disk Interface: Solid State


Connectivity Technology: NVMe


Brand: WD_BLACK


Special Feature: WD_BLACK Dashboard


Hard Disk Form Factor: 2.5 Inches


Hard Disk Description: Solid State Drive


Compatible Devices: Laptop, Motherboards


Installation Type: Solid State Drive


Color: Black


Hard Drive: ‎4000 GB Solid State Drive


Brand: ‎WD_BLACK


Series: ‎SN850X


Item model number: ‎WDS400T2X0E


Item Weight: ‎0.264 ounces


Product Dimensions: ‎3.15 x 0.87 x 0.09 inches


Item Dimensions LxWxH: ‎3.15 x 0.87 x 0.09 inches


Color: ‎Black


Flash Memory Size: ‎4 TB


Hard Drive Interface: ‎Solid State


Voltage: ‎1 Volts


Batteries: ‎1 Lithium Ion batteries required.


Manufacturer: ‎Western Digital Technologies, Inc.


Language: ‎Spanish


Date First Available: ‎August 3, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 18

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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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great Product, Works Fast!
Capacity: 2TB Style: SSD w/ Heatsink
Easy Install! Fast Drive and formats / works as expected. There is a little orange light that pulsates just to let you know that the device is working. This unit does NOT come with a screw or a mother board base to mount it to , so ensure that you have one from the MOBO Vendor or buy one separately. Size is as expected and I have not seen any noise or issues. Connected to the MoBo easily as well. Got it during Prime Days so I would say great value for the 2TB. ... show more
Reviewed in the United States on July 25, 2025 by DaChinaMan
    • 4 Years, it's still a Plug-and-Play Perfection for PS5
Capacity: 1TB Style: SSD w/ Heatsink
Quick Important Information: I bought this back in 2023 at a reasonable price of $85 As an average WD_BLACK user, I’ve come to expect reliable performance from their products, and this SN850 SSD lives up to the brand’s reputation. Installation & Setup: Super easy to install, literally plug-and-play. If you're using this with a PS5, the process is smooth and quick. Once installed, the console recognized it right away and formatted it without a hitch. No extra steps or tinkering needed. Performance Is Top-Notch: The SN850 runs like it is the PS5’s internal SSD. Game load times are identical, whether I’m playing directly off this drive or the built-in one. I’ve tested it with some larger titles and fast-paced games, and it handles everything effortlessly. Transferring games back and forth is quick, and performance remains stable even during longer sessions. The integrated heatsink does its job well, with no signs of overheating or thermal throttling. Built for Gaming: What I love about WD_BLACK is that their products are made with gamers in mind. This SSD isn’t just fast, it’s reliable, built well, and designed to meet modern gaming demands. I’ve used several of their drives over the years for both console and PC, and they’ve never let me down. This SSD is no exception. Final Thoughts: If you’re a PS5 owner looking for an easy storage upgrade that won’t compromise speed or performance, this is a perfect choice. It’s simple to install, works flawlessly with the system, and gives you the extra space you need to enjoy your full game library without constantly juggling files. WD_BLACK has once again delivered a product that hits all the marks—fast, dependable, and user-friendly. ... show more
Reviewed in the United States on May 9, 2025 by Taleful
    • Great unit
Capacity: 2TB Style: SSD
Review Image by Fabian Fabian
Put in my Rog Ally X. Fits great. Had no issues installing. Booted up fine. Really fast performance. No issues.
Reviewed in the United States on July 20, 2025 by Fabian Fabian
    • Great for pc gaming.
Capacity: 2TB Style: SSD
Boot time is great, size is normal, and the storage works great for all the games I play using this M.2 . Western Digital does it great for its price point. I have been using this storage for about two years and haven’t had an issue. Would buy again
Reviewed in the United States on September 8, 2025 by Nikolaus H
    • Pleasantly pleased!
Capacity: 8TB Style: SSD w/ Heatsink
Easy and quick to install. SSD, so no noise. Feels well made, despite being so compact. As long as you don't forget to format the drive, one should have no issues with this product. I didn't bother installing any additional software and it read the drive perfectly. It's expensive, but fair value for what one receives. ... show more
Reviewed in the United States on July 26, 2025 by Qpzz
    • Fast and Reliable Gaming SSD
Capacity: 2TB Style: SSD w/ Heatsink
This Fast and Reliable Gaming SSD my first WD SSD and I'm impressed. The WD 850X is fast and reliable for gaming, with quick load times and stable temperatures. Easy to install. Highly recommended for gamers.
Reviewed in the United States on September 4, 2025 by sevenmne
    • WD_BLACK 2TB SN850X NVMe SSD with Heatsink
Capacity: 2TB Style: SSD w/ Heatsink
Delivered ahead of schedule. Worked exactly as advertised...exceptionally well. Installed it in the desktop computer I built. This is a high-end NVMe according to Google Sheets and it lives up to that claim. I recommend this item and the seller.
Reviewed in the United States on August 28, 2025 by Verp Schnorpp
    • Insane Speed & Extra Space – A Must-Have for PS5!
Capacity: 1TB Style: SSD w/ Heatsink
I recently purchased the WD_BLACK 1TB SN850X NVMe SSD with Heatsink, and I couldn’t be happier. Here’s my detailed review: Features & My Experience Blazing-Fast Speeds (Up to 7,300 MB/s): Claim: Ridiculously short load times and top-tier performance. Reality: This SSD delivers insanely fast speeds. My PS5 boots up quicker, and load times in games are almost nonexistent. Everything feels smooth and instant—just how next-gen gaming should be. More Storage, More Games: Claim: Up to 8TB capacity means you can download more games without deleting your favorites. Reality: I got the 1TB version, and it’s a game-changer. No more constantly deleting and redownloading games. Now, I can keep my library ready to play anytime. Built-In Heatsink for Peak Performance: Claim: Helps maintain speed during intense gaming sessions. Reality: My PS5 recognizes it immediately, and the built-in heatsink keeps it running cool even after hours of gaming. No overheating issues, just top performance. WD_BLACK Dashboard (Windows Only): Claim: Monitors drive health and allows RGB customization (heatsink versions only). Reality: While this feature isn’t usable on PS5, it’s great if you’re using it on a gaming PC. Still, performance on PS5 is flawless, which is all I needed. Advanced Gaming Features: Claim: Predictive Loading, Overhead Balancing, and Adaptive Thermal Management improve efficiency. Reality: While these features work in the background, what I notice the most is how fast and responsive my system feels. Games launch almost instantly, and there are no hiccups. Final Thoughts This WD_BLACK SN850X SSD is an absolute must-have if you want faster load times, extra storage, and top-tier performance for your PS5 or PC. Installation was quick and easy, and the difference in speed is noticeable immediately. If you’re looking to upgrade your gaming experience, this SSD is worth every penny! ... show more
Reviewed in the United States on March 24, 2025 by Jean Fernandez

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