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WD - BLACK SN850X 2TB Internal SSD PCIe Gen 4 x4 NVMe

Model: WDBB9G0020BNC-WRSN
SKU: 6512128

Rating 4.9 out of 5 stars with 981 reviews

$464.99
suggested payments with 12-Month Financing

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Features

  • PCIe Gen 4 x4 (NVMe) interface

    Offers simple connection to your computer.

  • 2TB storage capacity

    Provides ample storage space for your music, movies and other files.

  • Reach high performance

    The NVMe technology delivers up to 7300MB/sec. data transfer rate speed for a smooth, responsive and powerful gaming experience.

  • Limited warranty

    This WD_BLACK SN850X SSD comes with a 5-year warranty.

  • Game Mode 2.0 technology

    Includes performance-boosting features, such as load prediction to ready game assets for fast in-game loading.

Specifications

  • Storage Capacity
    2000 gigabytes
    Storage Drive Type
    SSD
    Maximum Read Speed
    7300 megabytes per second
    Maximum Write Speed
    6600 megabytes per second
    Form Factor
    M.2 2280
    Interface(s)
    PCIe Gen 4 x4

Questions & Answers

  • Does this WD SSD have a heatsink?

    No, this SSD does not come with a heatsink.

    This question and answer was generated by AI based on customer and product data.
  • What is the maximum data transfer rate of this WD SSD?

    This WD SSD boasts a data transfer rate speed of up to 7300MB/sec.

    This question and answer was generated by AI based on customer and product data.
  • How long is the warranty on this WD SSD?

    This WD_BLACK SN850X SSD comes with a 5-year warranty.

    This question and answer was generated by AI based on customer and product data.
  • What is the storage capacity of this WD SSD?

    This WD_BLACK SN850X SSD has a storage capacity of 2TB.

    This question and answer was generated by AI based on customer and product data.
  • What type of interface does this WD SSD use?

    This SSD uses a PCIe Gen 4 x4 (NVMe) interface for easy connection to your computer.

    This question and answer was generated by AI based on customer and product data.
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Reviews

Customers are sayingCustomers find value in the exceptional speed and overall performance of this SSD, which users frequently highlight as a significant upgrade. Many reviewers also appreciate the generous storage capacity and the straightforward installation process that makes setup hassle-free. While the drive is highly regarded for its compatibility and price, some users noted that it can run warm and may require a firmware update upon arrival.
This summary was generated by AI based on customer reviews.
  • Speed (388)
  • Performance (256)
  • Storage (182)
  • Ease of use (70)
  • Price (68)
  • Heat (14)
  • Firmware (3)
  • Warranty (3)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Top-tier Gen 4 performance with impressive thermal

    I picked up the 2TB SN850X to handle heavy engineering workloads and large-scale data transfers, and it has not disappointed. In synthetic benchmarks, it consistently hits its advertised read/write speeds, but the real-world performance is where it shines. Whether I'm compiling large projects or moving massive datasets, the latency is negligible. I've noticed that even during sustained "heat-soak" scenarios, the drive manages thermals remarkably well without aggressive throttling. For anyone transitioning from a standard Gen 4 or an older Gen 3 drive, the snappiness in OS responsiveness and load times is immediately tactical. It’s a robust, "set it and forget it" piece of hardware that delivers exactly what it promises. Highly recommended for both professional builds and high-end gaming.

    Posted by Frank

  • Rated 5 out of 5 stars

    Blazing fast NVMs

    I had purchased this drive on December 21st,2025 for $250 out the door. It was on special marked down from $349.99 and even though the specs on my revent gaming PC build were great, I wanted another 2TB drive for storage...its crazy now only a few weeks later this same drive is now listed for $549.99 and I feel prices will just keep going up. I ended up making this drive my main, and the other I had my storage backup for games. Game sizes nowadays are HUGE and a 1TB won't get you more than 5 games of high-end titles nowadays. This SSd does run a tad hot, which the speeds they hit is expected. There's a version of the SN850X mounted inside a thermal spreader from WD, but for 25$ on Amazon, you can get a pretty good one. And the fact that it decreased 20 °C on high load with one, was worth it. This drive is great, but at the current cost of what it's listed, I hesitate to say it is. If.you see it on a great price,snag it,because they will indeed continue to rise Specials happen quite often in the PC world. But this regardless is one of the best NVMe ive used and was agreay buy for exactly what I needed!

    Posted by TerpeneSteve

  • Rated 5 out of 5 stars

    Works well and feels fast

    I haven’t done any detailed speed testing, but in normal use everything feels fast and responsive. Coming from an older laptop, the difference is very noticeable, especially with loading, installing and opening programs. The 2TB size is also really nice to have because I wanted enough space for creative work and larger files without immediately worrying about storage. So far no complaints. It does exactly what I needed to do and I think with an SSD, that’s kind of the best sign.

    Posted by TAMY

  • Rated 5 out of 5 stars

    Blazing Fast and Super Reliable

    This SSD is lightning quick — Windows boots in seconds and large file transfers are done almost instantly. Perfect for both work and gaming. Load times in games are nearly nonexistent. Easy install and runs cool even without a heatsink. Excellent upgrade for any high-performance build.

    Posted by IsaacJ

  • Rated 5 out of 5 stars

    Great SSD. WD_BLACK SN850X 2TB

    [Employee of bestbuy] This drive has some really good specs for gamers, it offers high read and wrtie speeds for the user for gaming or creativity. It also has new features for windwos 11 of direct storage for faster load times. Pros: Excellent Performance: The SN850X delivers top-tier performance in almost every category, ensuring fast load times and smooth gameplay1 Optional Heatsink/RGB: The optional heatsink with RGB lighting not only keeps the drive cool but also adds a stylish touch to your setup1 Wide Range of Capacities: Available in 1TB, 2TB, 4TB, and 8TB, there's an option for everyone1 Good Software Support: The drive comes with comprehensive software support and a solid warranty. Cons: Pricey: The SN850X is on the higher end of the price spectrum, which might be a consideration for budget-conscious buyers1 Game Mode 2.0: While innovative, some users find the Game Mode 2.0 feature to be a bit gimmicky1 Overall, the WD_BLACK SN850X is a fast and reliable choice for all needs for gaming, general use, and professional use. Would reccomend Note: I had games downloading on my system so the benchmark might not be at justice. But, I can tell a difference with my applications and game loading time compared to my old gen 3.

    Posted by NathanS

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Pros for WD - BLACK SN850X 2TB Internal SSD PCIe Gen 4 x4 NVMe
Speed, Performance, Storage, Ease of use, PriceSpeed, Performance, Storage, Ease of use, InstallationThere were no pros for this product—Speed, Ease of use, Installation, Overall Performance, Storage Capacity
Cons for WD - BLACK SN850X 2TB Internal SSD PCIe Gen 4 x4 NVMe
Heat, Firmware, WarrantyHeat, FirmwareThere were no cons for this product—Heat, Firmware

Specs