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Sandisk WDS400T2X0E-00BCA0 Hard Drives Wd Black Sn850x Wds400t2x0e-00bca0 4 Tb Solid State Drive - M.2 2280 Internal - Pci Express Nvme (pc Wds400t2x0e00bca0 718037891378
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Part Number: WDS400T2X0E-00BCA0
Condition: New
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WD Black SN850X WDS400T2X0E-00BCA0 4 TB Solid State Drive - M.2 2280 Internal - PCI Express NVMe (PCI Express NVMe 4.0 x4) - Gaming PC, PlayStation, Workstation, Computer Device Supported - 2400 TB TBW

SN850X NVMe SSD 4tb

Manufacturer Part Number: WDS400T2X0E-00BCA0



CPN:SN850X NVMe SSD 4tb
MANUFACTURER NAME: Sandisk
MANUFACTURER PART NUMBER: WDS400T2X0E-00BCA0
UPC EAN CODE: 718037891378
LANGUAGE: EN
MARKET:US

General Information:

HIGH-PERFORMANCE NVMe™ STORAGE WITH PCIe® GEN4 TECHNOLOGY

Crush load times and slash throttling, lagging, and model pop-ins with the WD_BLACK™ SN850X NVMe™ SSD, the purposebuilt gaming drive that lets you compete at your absolute peak.
Get the ultimate gaming edge over your competition with insane speeds up to 7,300 MB/s for top-level performance and ridiculously short load times.
Soup up your gaming experience with extremely low latency that loads graphics fast with minimal stutter and lagging for smooth, satisfying action.
A range of capacities from 1TB to 4TB means you get to keep more of today's games that can take up 200GB or more of storage.
The 1TB and 2TB drives offer optional RGB lighting plus a heatsink to help maintain peak performance through the most intense gaming sessions.
Game Mode 2.0 serves up even more PC performance-boosting features like load prediction to ready game assets for fast in-game loading.
Output approaching the limits of the PCIe® Gen4 interface helps you get ultra-fast performance out of your storage and system components.
PRODUCT FEATURES | GET THE ULTIMATE GAMING EDGE
Insane speeds up to 7,300 MB/s deliver top-tier performance with ridiculously short load times for the elite gaming experience you've been waiting for.
SOUP UP YOUR RIG
Extremely low latency loads graphics fast with minimal stutter and lagging for an incredibly smooth, satisfying gaming experience.
MORE ROOM FOR MORE GAMES
Today's A-list titles can take up to 200GB or more of storage. A range of capacities from 1TB to 4TB means you get to keep more games at the ready and get into the action fast.
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.
GAME MODE 2.0
 The latest version of Game Mode serves up even more PC performanceboosting features like load prediction to ready game assets for fast in-game loading.
NEAR-MAX PCIe® GEN4 SPEEDS
 The WD_BLACK™ SN850X NVMe™ SSD delivers output approaching the limits of the PCIe® Gen4 interface to help you get ultra-fast performance out of your storage and system components.

ManufacturerWestern Digital Corporation
Manufacturer Part NumberWDS400T2X0E-00BCA0
Manufacturer Website Addresshttp://www.wdc.com
Brand NameWD
Product LineBlack
Product SeriesSN850X
Product ModelWDS400T2X0E-00BCA0
Product NameBLACK SN850X NVMe SSD
Product TypeSolid State Drive
  Product UPC718037891378
Technical Information:
Storage Capacity4 TB
Platform SupportedPC
Drive Performance:
Maximum Read Transfer Rate7300 MB/s
Maximum Write Transfer Rate6600 MB/s
Random 4KB Read1200000IOPS
Random 4KB Write1100000IOPS
Endurance (TBW)2400 TB
Maximum Sequential Read7.13 GB/s
Maximum Sequential Write6.45 GB/s
Network & Communication:
Wireless LANNo
Interfaces/Ports:
Drive InterfacePCI Express NVMe
Drive Interface StandardPCI Express NVMe x4
Physical Characteristics:
Drive TypeInternal
Form FactorM.2 2280
Height0.1"
Width0.9"
Length3.1"
Weight (Approximate)0.26 oz
Miscellaneous:
Device SupportedGaming Console
Desktop PC
CompatibilityPlayStation 5
Operating System CompatibilityWindows 8.1
Windows 10
Windows 11
Warranty:
Warranty5 Year

What Can Your Device Hold?

Desktop HDD

1Photos based on a 10-Megapixel camera producing images 5MB in size
2Songs based on average length of 4 minutes, 4MB size
3HD video based on 720p or 1080i video
4Blu-ray HD Movie was calculated at 16.2Gb per hour recording rate

View All Sandisk Hard Drives View All Hard Drives

Date Inserted: Wednesday May 7, 2025

This product was last updated on Sunday April 19, 2026

All products are brand new and factory sealed unless otherwise stated.
 *** Disclaimer- Information is supplied by the Manufacturer. The image, including color, may differ from actual product appearance. CompSource, Inc. is not responsible for data. ***

Questions and Answers

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Shipping / Returns

Shipping

Ground = FREE
(EST. Arrival Date between Wed.Apr.22 - Mon.Apr.27)

Two Day Air = $25.00
(EST. Arrival Date on Wed.Apr.22)

Priority = $45.00
(EST. arrival Date on Tue.Apr.21 in the AM)

U.S Mail Priority (AA,AE,AP only) = $30.00

FedEx International Economy (Canada only) = $85.00

Shipping dates are best estimates based on product location and may vary with holidays.

If product requires trucking, additional fees may apply.

* Some destinations are subject to Applicable State/Duty Taxes

Returns

CompSource realizes that every product may have different return guidelines. Please see the policy below regarding this item.

This Product Has Limited Exchange Privileges.

Limited returns within 30 days of purchase permitted on this product.

For support on this product, please contact Sandisk. 866-726-3475 www.sandisk.com


Sandisk Company's Information

Sandisk  
Click Sandisk for all products

Local #: 408-542-0500

Toll Free #: 866-726-3475

Tech Support #: 408-542-0400

Site:  www.sandisk.com

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    About Sandisk

    Why SanDisk Storage Solutions Are a Smart Choice – Available at CompSource

    About SanDisk: A Pioneer in Flash Storage

    SanDisk, a brand of Western Digital, has been a global leader in flash memory storage since its founding in 1988. Known for innovation and reliability, SanDisk has revolutionized the way we store and access digital content—from personal photos to enterprise-level data.

    What SanDisk Offers

    SanDisk provides a wide range of storage solutions for consumers, professionals, and businesses:

    • USB Flash Drives – Portable, high-speed storage for everyday use.
    • Memory Cards (SD, microSD) – Ideal for cameras, smartphones, and drones.
    • Solid State Drives (SSDs) – Fast, reliable internal and external storage for PCs and laptops.
    • Portable SSDs – Rugged, high-capacity drives for creators and professionals on the go.
    • Enterprise Solutions – Scalable flash storage for data centers and cloud infrastructure.

    Why Choose SanDisk?

    SanDisk stands out for its:

    • Proven Reliability – Trusted by millions for safe, long-term data storage.
    • Performance – Fast read/write speeds for seamless data transfer and access.
    • Innovation – Continual advancements in flash memory technology.
    • Compatibility – Works across a wide range of devices and platforms.

    Why Buy SanDisk from CompSource?

    CompSource is your trusted source for authentic SanDisk products. Here’s why customers choose us:

    • Authorized Reseller – Genuine SanDisk products with full warranty support.
    • Competitive Pricing – Great deals on the latest storage solutions.
    • Expert Support – Our team helps you find the right product for your needs.
    • Fast Shipping – Get your gear quickly and reliably.

    We want this to be as easy and stress-free as possible. CompSource is here to help with your Sandisk purchase. We're here to help you decide. Chat with us or give our professionals a quick phone call (800)-413-7361, we can assist with the best Sandisk solution for your needs and budget.

    Here are our most popular categories;

    © 2025 CompSource, Inc. All rights reserved.

    About the Author

    Mason Maynard - Marketing Manager of CompSource

    Mason Maynard

    Mason Maynard is a people-oriented individual who finds joy in spending quality time with friends and family, valuing strong personal connections. With a strong interest in Marketing and Sales, Mason thrives on creating impactful strategies that engage audiences and drive meaningful results. Mason is passionate about innovation, business growth, and delivering top-tier customer service.

    Connect with Mason on: LinkedIn


    Learn more about Hard Drives

    Everything You Want to Know About Hard Drives.

    Understanding hard drive basics will help you make better storage decisions.

    What's a Hard Drive Do?
    A hard drive is the hardware component that stores all of your digital content. Your documents, pictures, music, videos, programs, application preferences, and operating system represent digital content stored on a hard drive. Hard drives can be external or internal.

    Everything stored on a hard drive is measured in terms of its file size. Documents (text) are generally very small whereas pictures are large, music is even larger, and videos are by far the biggest. A hard drive determines the size of digital files in terms of megabytes (MB), gigabytes (GB), and terabytes (TB).

    There are 3 major versions of hard drive technologies. All of them have pros and cons and reasons for owning each versions;

    Standard Hard Drives
      This is an older technology but has continued to evolve in speed and reliability. Basically the technology is like a record player except the platters are metal instead of vinyl and the needle is magnetic allowing you to read, write and erase. The faster the hard drive spins, or RPM, the faster the read and write happens.
      Pros -- Cheapest per GB, very reliable and easily replaceable.
      Cons -- Much slower than newer technologies.

    Solid State or SSD Drives
      Solid State is basically a form of memory that can be written to and the data will stay saved even with the power off!
      Pros -- Very Fast read/write, no moving parts so it is quiet and in theory should last longer, less heat and energy.
      Cons -- Price per GB is more expensive than Standard HDD.

    M.2 Drives

      An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification written for internally mounted storage expansion cards of a small form factor. Shaped like a stick of gum. Most M.2 SSDs are 80 x 22mm (L x W), but they can be shorter or longer. You can tell what size an M.2 SSD is by reading the four or five-digit number in its name: the first two numbers are its width, while the others are its length (example: M.2 Type-2280).
      Pros -- Small for factor and SPEED,!!! M.2 card can use either the existing SATA 3.0 specifications and be restricted to the 600MB/s or it could instead elect to use PCI-Express that provides a bandwidth of 1GB/s under the current PCI-Express 3.0 standards.
      Cons -- Compatibility, since this is an internal storage device your motherboard must be newer and include the proper slot(s) to accommodate this storage technology.

    Hybrid Hard Drives

      A Hybrid Hard Drive may be the best of both worlds. In a Hybrid Drive you have both SSD and Platter or Standard Hard Drives included in one device. Typically you have a smaller SSD Drive coupled with a larger HDD. You have the low price per GB of an HDD and the speed of an SSD. This type of drive is a great choice for SMB workstations all the way to gaming machines.
      Pros -- Best overall value for the dollar as well as speed ratio.
      Cons -- Can add a level of complexity to some users as you basically have 2 drives in one and will have to be aware of what drive you will save data vs programs to.

    If you have an older Computer or notebook consider the SSD option as it will make your system feel new again with this faster storage technology.

    Internal vs. External or Portable Hard Drives

    External desktop hard drives are built using a drive and require an AC adapter plugged into a power outlet. These drives are a good choice for supplementing a desktop computer or plugging into a laptop's home base, and typically can extend your need to upgrade your hard drive or more importantly it can be used as a backup drive. As the saying goes "It's not if, but when something fails!" Please Backup...



    CompSource wants this to be as easy and stress-free as possible.

    We're here to help you decide. Chat with us or give our professionals a quick phone call (800)-413-7361, we can assist with the best solution for your needs and budget.



    6/2/06 3:25 PM I ordered a scanner from them on a Wednesday around 3:00 PM. Shipping was free so I just ordered standard ground shipping. I received the scanner the next morning by Fedex ground. They only had to ship it one state away, but I was very impressed that they had it packaged up and shipped out the door to me within 2 hours of my order. spooksmcgee22
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