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WD - BLACK SN7100 4TB Internal SSD Gen 4 x4 NVMe

Model: WDBELG0040BBK-WRSN
SKU: 6615942
Deal ends May 10, 2026
$589.99
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Specifications
  • Storage Capacity
    4000 gigabytes
    Storage Drive Type
    SSD
    Maximum Read Speed
    7250 megabytes per second
    Maximum Write Speed
    6900 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: 7250 megabytes per second (The greatest speed at which the device can read information; for example, opening files.)
    • Maximum Write Speed: 6900 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: WDBELG0040BBK-WRSN
    • Product Name: BLACK SN7100 4TB Internal SSD 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: 7250 megabytes per second (The greatest speed at which the device can read information; for example, opening files.)
    • Maximum Write Speed: 6900 megabytes per second (The greatest speed at which the device can write information; for example, saving files.)
    • SSD Endurance: 2600 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.)
  • 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.)
  • Features
    • Data Encryption: false
    • Usage: Everyday computing, Performance computing, Gaming
    • Lighting Type: None
  • 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: 0.02 ounces (The out of box weight of the item.)
  • Warranty
    • Warranty - Parts: 5 years
    • Warranty - Labor: 5 years
  • Other
    • UPC: 619659215828

Get ready to game even faster with the WD_BLACK SN7100 NVMe SSD, featuring up to 7,250MB/s read and 6,900MB/s write speeds (1-2TB models), providing up to a 35% performance boost over the previous generation SSD. Engineered with laptops and gaming handhelds in mind, obliterate load times and conquer your heftiest gaming sessions with improved power efficiency at maximum speed. Store more games and still have room for future updates and DLC, with capacities up to 2TB. Upgrade now and ensure you’re ready for the rigors of AI applications and next generation gaming.

  • High-octane gaming SSD: Experience an exhilarating boost you can see and feel with level-conquering speeds up to 7,250MB/s read and 6,900MB/s write (1-2TB models). The WD_BLACK SN7100 NVMe SSD boasts up to 35% faster performance than previous generation,helping you harness AI applications and take on the next wave of cutting-edge games.
  • Built with leading-edge tech: Equipped with a PCIe Gen4 interface powered by Western Digital’s next generation TLC 3D NAND, the WD_BLACK SN7100 NVMe SSD is designed to provide the speed and power efficiency serious on-the-go gamers need.
  • More space for favorites and new titles: Available in multiple capacities up to 2TB, the WD_BLACK SN7100 NVMe SSD gives you tons of storage for your latest games with space left over for future updates and downloadable content.
  • Clear that checkpoint: Built with laptops and handheld gaming devices in mind, this DRAM-less drive provides up to 100% more power efficiency at maximum speed over the previous generation.
  • Do more with Dashboard: The downloadable WD_BLACK Dashboard (Windows only) monitors your drive’s health, performance, firmware updates, and enables Game Mode to optimize your gaming experience.
  • Endurance for intense workloads: Amplify your content with up to 1,200TBW endurance (2TB model) for gameplay streaming, speedrun captures, or even using the latest game engines for your own creations.

Q: What is the maximum read and write speed of this SSD?

A: This SSD boasts read and write speeds up to 7,250MB/s and 6,900MB/s, respectively (for 1-2TB models).

Q: What interface does the WD_BLACK SN7100 NVMe SSD use?

A: It utilizes a PCIe Gen4 interface.

Q: Does this SSD have a higher power efficiency compared to the previous generation?

A: Yes, this SSD offers a 100% increase in power efficiency at maximum speed compared to the previous generation.

Q: How much endurance does the 2TB model of this SSD provide?

A: The 2TB model of this SSD offers up to 1,200TBW of endurance.

Q: How much storage space does this SSD offer?

A: This SSD is available in several storage capacities, with the highest being 2TB.

Q: Does this model have heat sinks?

A: No it doesn’t unfortunately

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Pros for WD - BLACK SN7100 4TB Internal SSD Gen 4 x4 NVMe
Overall Performance, Storage Capacity, Heat Dissipation, CompatibilityOverall Performance, Speed, Installation, Storage Capacity, Heat DissipationSpeed, Overall Performance, Storage Capacity, Installation, SSDThere were no pros for this product
Cons for WD - BLACK SN7100 4TB Internal SSD Gen 4 x4 NVMe
There were no cons for this productThere were no cons for this productHeat, PriceThere were no cons for this product

Specs

Reviews

93% would recommend to a friend
Customers are sayingCustomers recognize the BLACK SN7100 4TB Internal SSD Gen 4 x4 NVMe for its overall performance, with some users calling it a game changer. Users also appreciate the storage capacity, noting it's a great purchase for expanding memory.
This summary was generated by AI based on customer reviews.
  • Overall Performance (17)
  • Storage Capacity (9)
  • Heat Dissipation (6)
  • Compatibility (4)

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.

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