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Sandisk

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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Availability: Only 1 left in stock, order soon!
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Arrives Thursday, Apr 30
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Size: 8TB


Style: SN850X


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 youve 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 drives 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.

Description

Crush load times and slash throttling, lagging, and texture pop-ins with the WD_BLACK SN850X NVMe SSD. Available in capacities of 1TB up to 8TB, this gaming drive is built for top-tier performance. With 7,300MB/s speeds (1TB - 4TB models) and a heatsink option to maintain performance, you can enjoy your favorite games without worrying about lag. Plus, the downloadable SANDISK Dashboard (Windows only) can automatically turn on Game Mode 2.0 features. The WD_BLACK SN850X NVMe SSD delivers a smooth, fast experience —and the innovations that let you compete at your absolute peak. POWERED BY SANDISK

Digital Storage Capacity: 8 TB


Hard Disk Interface: Solid State


Connectivity Technology: NVMe


Brand: Sandisk


Special Feature: WD_BLACK Dashboard


Hard Disk Form Factor: 22 Millimeters


Hard Disk Description: Solid State Drive


Compatible Devices: Laptop, Motherboards


Installation Type: Internal Hard Drive


Color: Black


Digital Storage Capacity: 8 TB


Hard Disk Interface: Solid State


Connectivity Technology: NVMe


Additional Features: WD_BLACK Dashboard


Hard Disk Form Factor: 22 Millimeters


Compatible Devices: Laptop, Motherboards


Specific Uses For Product: Gaming


Read Speed: 7200 Megabytes Per Second


Media Speed: 6300 MB/s


Cache Memory Installed Size: 8


Data Transfer Rate: 7200 Megabytes Per Second


Form Factor: M.2 2280


Hardware Connectivity: PCI Express x16


Compatible Video Game Console Models: Sony PlayStation 2, Sony PlayStation 3, Sony PlayStation 4, Sony PlayStation 5


Hardware Platform: PC


Installation Type: Internal Hard Drive


Color: Black


Enclosure Material: Information Not Available


Brand: Sandisk


Model Number: WDS800T2X0E


Hard Disk Description: Solid State Drive


Built-In Media: 7200, Internal Solid State Drive, Megabytes Per Second


Model Name: WD_BLACK SN850X NVMe SSD


Manufacturer: Sandisk Technologies, Inc.


Global Trade Identification Number: 18


UPC: 718037903118


Mfr Part Number: WDS800T2X0E


Warranty Description: 5 year limited warranty


Hard-Drive Size: 8 TB


Item Weight: 5 Grams


Number of Items: 1


Unit Count: 1.0 Count


Customer Package Type: Standard Packaging


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 30

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

    • Great quality and reliability
Size: 4TB Style: SN850X
Great quality and reliable functionality that you'd expect from Western Digital. The capacity is amazing, it has blazing fast read/write speeds, and installation was a breeze as it fits a standard M.2 socket. I was able to immediately initialize and partition it for use after installing it. This went into my laptop, so it obviously changed nothing externally and added only a few grams to the weight. It's pricey, but I'd rather get a good one from a brand I trust than just go with the cheapest option available. ... show more
Reviewed in the United States on January 4, 2026 by MattB
    • Blazing Fast Performance and Excellent Reliability
Size: 1TB Style: SN850X
The WD_BLACK SN850X 1TB NVMe SSD delivers outstanding speed and performance. Boot times are noticeably faster, games and applications load almost instantly, and overall system responsiveness feels dramatically improved. Installation was simple, and the drive runs reliably even under heavy workloads. It’s a fantastic upgrade for gaming rigs or productivity setups and offers excellent value for such high-end performance. ... show more
Reviewed in the United States on January 12, 2026 by Pedro Guimaraes
    • Excellent SSD, Great Performance After Finding the Right Enclosure and Cable
Size: 8TB Style: SN850X
I bought the WD_BLACK 8TB SN850X NVMe SSD to use with the UGREEN 80Gbps M.2 NVMe SSD Enclosure and connected it to my M4 Max Mac Studio. At first, I noticed fast transfer speeds, but after transferring a few large files, the speed dropped significantly. Unplugging and reconnecting the enclosure temporarily fixed it, but the issue kept happening. I suspected the problem was the UGREEN enclosure since Western Digital drives have always been reliable for me. I returned the UGREEN and replaced it with the OWC Express 1M2 80Gb/s Enclosure. Transfer speeds were excellent, but the drive started disconnecting a couple of minutes after startup. The included USB-C cable was also too short. I replaced it with the OWC 0.8M Thunderbolt 5 (USB-C) Cable, and that completely solved the disconnection issue. Now everything works flawlessly, with consistent speeds of around 5800 MB/s write and 5600 MB/s read, and the enclosure stays cool during long transfers. It took some troubleshooting, but I’m very satisfied with the final setup. ... show more
Reviewed in the United States on October 31, 2025 by Fabricio
    • Lightning-fast, reliable, and built for performance — highly recommended.
Size: 4TB Style: SN850X
Review Image by R. Ortiz
Review Image by R. Ortiz
Review Image by R. Ortiz
I’ve been using this drive for a few months, and it’s easily one of the fastest and most stable Gen4 SSDs I’ve tested. Benchmarks reached 7,133 MB/s read and 4,169 MB/s write in performance mode — right in line with WD’s specs. Even under load, it maintained around 6,500 MB/s read and 3,600 MB/s write, showing great consistency. For testing purposes, I also ran a power-saving “stress” scenario that intentionally limited performance to simulate extreme throttling. Those results were only for analysis — customers will never experience that kind of slowdown in normal use. Thermals stay solid with a basic heatsink (mid-50 °C), and there’s no throttling during long transfers. The WD Dashboard software is easy to use and adds an optional Gaming Mode for max speed. ⚖️ Pros: - Reaches full Gen4 performance (7,000+ MB/s reads) - Excellent sustained write speed and thermal stability - Rock-solid reliability for OS, games, or content creation - Intuitive WD Dashboard software ⚠️ Cons: - Can run warm without heatsink - Requires a PCIe Gen4 slot and good airflow for full speed 🏁 Final Thoughts: The WD_BLACK SN850X is a premium SSD that lives up to its reputation. Under the right conditions, it delivers near-theoretical Gen4 speeds and flawless stability. Even in multitasking or gaming scenarios, performance stays consistent and responsive. The “low” benchmark results included here were testing artifacts—stress conditions designed to show how power management affects throughput, not what normal users should expect. In everyday use, this drive is exceptionally fast, reliable, and built to last. ✅ Verdict: A flagship-level NVMe SSD that rewards systems tuned for performance. Highly recommended for gamers, developers, and creators who want speed with zero compromise. ... show more
Reviewed in the United States on October 18, 2025 by R. Ortiz
    • Great SSD, but Not Compatible with the Kwumsy K3 Dock ⚠️💻
Size: 1TB Style: SN850X
The WD_BLACK 1TB SN850X NVMe Internal Gaming SSD is a top-tier Gen4 PCIe solid-state drive, delivering lightning-fast speeds and exceptional performance for gaming and multitasking. However, if you’re planning to use it with a Kwumsy K3 keyboard dock, be aware that this SSD isn’t compatible, as the M.2 slot in the dock requires a specific size or configuration. What makes the SN850X great: Blazing-fast performance: With Gen4 PCIe technology, the SN850X offers up to 7,300MB/s read speeds, ensuring lightning-fast load times for games and applications. It’s a beast for high-performance PCs and gaming rigs. ⚡🎮 Reliable storage: At 1TB, it provides ample space for large games, files, and programs while maintaining exceptional reliability and efficiency. 🗂️📈 Gaming-focused features: Optimized for gaming, the SN850X includes features like a low-latency mode for smoother gameplay and faster response times, making it ideal for gamers who demand peak performance. 🎯🔥 The issue with the Kwumsy K3: Unfortunately, while the Kwumsy K3 keyboard dock offers an M.2 slot, its size or power delivery isn’t compatible with the SN850X. Always double-check the size and type of the M.2 SSD slot (e.g., NVMe vs. SATA, 2230 vs. 2280 size) before purchasing an SSD for devices like docks or compact enclosures. 🛑💻 Bottom line: The WD_BLACK SN850X 1TB SSD is an outstanding choice for gamers and PC builders, but it’s not suitable for the Kwumsy K3 keyboard dock due to compatibility issues. Make sure to confirm the requirements of your device before purchasing to avoid compatibility hiccups. 💻⚡❌ ... show more
Reviewed in the United States on December 2, 2024 by R Washington

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