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

Rating 4.9 out of 5 stars with 493 reviews

$589.99
$1,724.99
In Internal SSDs

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

Model: WDBB9G0040BNC-WRSN
SKU: 6512129
$589.99
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Specifications
  • Storage Capacity
    4000 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
  • Key Specs
    • Storage Capacity: 4000 gigabytes (Measured in megabytes (MB), gigabytes (GB) and terabytes (TB), this is the amount available for storing files, music, movies, photos and more. The total includes the capacity of the hard disk drive and solid state drive if both are included on the computer.)
    • Storage Drive Type: SSD (Traditional, mechanical hard disk drives are the most common type of storage because they're relatively inexpensive and offer huge capacities. However, they also generate both noise and heat. Solid state drives, also known as SSDs, are many times faster than hard disk drives and have no moving parts to wear out, but typically offer less capacity for the same price.)
    • Maximum Read Speed: 7300 megabytes per second (The greatest speed at which the device can read information; for example, opening files.)
    • Maximum Write Speed: 6600 megabytes per second (The greatest speed at which the device can write information; for example, saving files.)
    • Form Factor: M.2 2280
    • Interface(s): PCIe Gen 4 x4 (Refers to the types of connections that devices use to interact and communicate with each other.)
  • General
    • Brand: WD
    • Model Number: WDBB9G0040BNC-WRSN
    • Product Name: BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe
  • Capacity
    • Storage Capacity: 4000 gigabytes (Measured in megabytes (MB), gigabytes (GB) and terabytes (TB), this is the amount available for storing files, music, movies, photos and more. The total includes the capacity of the hard disk drive and solid state drive if both are included on the computer.)
  • Performance
    • Storage Drive Type: SSD (Traditional, mechanical hard disk drives are the most common type of storage because they're relatively inexpensive and offer huge capacities. However, they also generate both noise and heat. Solid state drives, also known as SSDs, are many times faster than hard disk drives and have no moving parts to wear out, but typically offer less capacity for the same price.)
    • Maximum Read Speed: 7300 megabytes per second (The greatest speed at which the device can read information; for example, opening files.)
    • Maximum Write Speed: 6600 megabytes per second (The greatest speed at which the device can write information; for example, saving files.)
    • SSD Endurance: 2400 terabytes (The total amount of data that the solid-state drive (SSD) is able to write before it wears out, as specified by the manufacturer. Endurance is limited because the flash on a SSD has a finite number of cycles that it can complete.)
    • Heatsink: false (Dissipates heat during intense operation for sustained peak performance.)
  • Compatibility
    • Internal Or External: Internal
    • Product Compatibility: Desktop computers, Laptop computers
    • Form Factor: M.2 2280
    • Interface(s): PCIe Gen 4 x4 (Refers to the types of connections that devices use to interact and communicate with each other.)
    • Operating System Compatibility: Windows
  • Features
    • Data Encryption: false
    • Usage: Everyday computing, Gaming, Performance computing
    • Lighting Type: None
  • Memory
    • NAND Flash Memory Type: TLC (Single Level Cell (SLC) stores 1 bit of data per memory cell; Multi Level Cell (MLC) stores 2 bits per cell, Triple Level Cell (TLC) 3 bits, and Quad Level Cell (QLC) 4 bits. Vertical NAND (V-NAND) or 3D NAND stores more data by layering cells vertically. Similarly, there are 3D MLC, 3D TLC and 3D QLC stacked cells.)
  • Dimensions
    • Product Height: 0.09 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 0.87 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Weight: 0.32 ounces (The out of box weight of the item.)
  • Warranty
    • Warranty - Parts: 5 years
    • Warranty - Labor: 5 Years
  • Other
    • UPC: 619659193454

Strap in for breakneck gaming speeds with the WD_BLACK SN850X NVMe internal SSD. Crush load times and slash throttling, lagging, and model pop-ins for a smooth, fast experience that lets you compete at your absolute peak. This purpose-built gaming drive comes in the capacity of 4TB. With the advanced features of Game Mode 2.0 (Windows only) plus speeds that approach the limits of the PCIe Gen43 interface, the WD_BLACK SN850X NVMe SSD delivers top-tier performance to keep you playing, streaming, recording, and dominating the game.

  • PCIe Gen 4 x4 (NVMe) interface: Offers simple connection to your computer.
  • 4TB 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.
Whats Included
  • WD_BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe
  • Owner's manual

Q: What type of interface does this WD SSD use?

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

Q: What is the storage capacity of this WD SSD?

A: This WD_BLACK SN850X SSD has a storage capacity of 4TB.

Q: Does this WD SSD come with a heatsink?

A: No, this SSD does not come with a heatsink.

Q: How long is the warranty on this WD SSD?

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

Q: What is the maximum data transfer rate of this WD SSD?

A: This SSD has a data transfer rate of up to 7300MB/sec.

Q: Is heatsync included

A: No but you can get a good one for under $15

Q: Can this work in a ps5

A: Yes. Just put a 4 TB in a PS5 and no problem so far. 6500 MB/s read speed reported upon a very quick format.

Q: Is this compatible with an Asus Rog Ally X?

A: Yes it took me maybe 10 minutes to swap out. You may want to get some thermal tape, I just used the piece that was on the ssd in the device but I don't know if that's advisable or not. I have had no temperature issues my device typically stays right around 80c while playing intensive game on turbo plugged in.

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Pros for WD - BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe
Speed, Storage, Performance, Ease of use, PriceSpeed, Performance, Storage, SSD, InstallationThere were no pros for this productSpeed, Performance, Storage, Ease of use, Price
Cons for WD - BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe
HeatHeat, PriceThere were no cons for this productHeat, Firmware, Warranty

Specs

Reviews

Customers are saying

Customers commend the BLACK SN850X 4TB Internal SSD for its speed, ample storage, and great performance. Users also appreciate its ease of use and installation, considering it a perfect SSD M.2 hard drive with wide-ranging compatibility. Some customers noted the absence of a heat sink as a potential drawback. Overall, many find it to be a great product for the price.

This summary was generated by AI based on customer reviews.

Customer Images

  • Rated 5 out of 5 stars

    High end nvme for gaming needs

    Excellent price for a high end nvme. I got this for my gaming laptop and it performed well. Specs is right up there with the best of the best. I was also able to get it during the sale and got it for pretty low price right before the new year. Prices for ssd are excepted to drop, but for now I should be good for plenty of games on my gaming laptop. Speed is very fast. See picture of the crystalmark. Definitely not the fastest at sequential, but the IOPs is out of this world and that is what really matters when you are doing a lot of small random files. I highly recommend this for anyone who wants the best right now for a reasonable price. My only gripe is this is a 2 sided nvme meaning there are flash chips on both sides of the board. This might not be a big issue for some but for me, it made the chip a bit chunky. I compensated on my laptop by not screwing it too tightly and use light threadlocker to prevent the screw from coming loose.

    AIGamingCryptoBot Posted

  • Rated 5 out of 5 stars

    One of the fastest Gen4 M.2 Drives available

    Installed the drive with a Thermalright HR-09 2280 SSD Heatsink to keep the heat down and try to maintain the longevity of the drive. With the heatsink installed, the drive idles around 100F and I saw it go up to 137F while running CrystalDiskMark. After installing the first thing I did was install the SanDisk Dashboard software to check for a firmware update but the drive came with the latest firmware. You can buy faster Gen5 M.2 drives, but unless your computer supports the faster protocol, it will just default back to Gen4 speeds. Don't bother. So far quite impressed with the drive. Would recommend.

    MrBe Posted

  • Rated 5 out of 5 stars

    Will speed your system up more than anything else.

    Okay, there is not much to review. Just pop them into your Gen 4 slot (Gen 3 will work but be slower) and away you go. It is super easy and if you have to force it, it may not be the right type. These things are rockets even compared to your SATA connected SSDs. It made more of a difference in speed on my system than did 64GB of RAM, or a top of the line Intel I9. This is the best upgrade you can put in your system as hard drives are a choke point for data. I recommend a small drive for your OS drive. 500GB will suffice in most cases even if you have a lot of apps but I went with a 1TB because that was the smallest I could get. I then put in two 4TB drives for DATA storage. The reason you want to keep the OS drive small is so you can make backups on the DATA drive. You can partition the large one down for the OS drive but be careful restoring the OS. If your system supports Gen 4 or Gen 3 these are a great option for speed!

    DarvinA Posted

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