Techtober SaleEnds Sunday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Roseville
1643 County Road B2Roseville, MN 55113Opens at 10 am
Find Another Store
Main Content
Shop WD

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

Model: WDBELG0040BBK-WRSN
SKU: 6615942
Sold byBest Buy

Customers are saying

Customers praise the product's excellent overall performance, with many considering it a game changer. They also highlight its good read/write speeds, effective heat dissipation even without a heatsink, and broad compatibility with devices like the Asus ROG Ally. Additionally, users appreciate its storage capacity, noting its efficient power consumption.

Generated by AI based on customer reviews.

Storage Capacity

4000GB

Features

  • 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.

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
Sponsored

Reviews

Rating 4.9 out of 5 stars with 52 reviews

5 star rating. 49 reviews4 star rating. 1 review3 star rating. 1 review1 star rating. 1 review
94% would recommend to a friend
Customers are sayingCustomers praise the product's excellent overall performance, with many considering it a game changer. They also highlight its good read/write speeds, effective heat dissipation even without a heatsink, and broad compatibility with devices like the Asus ROG Ally. Additionally, users appreciate its storage capacity, noting its efficient power consumption.
This summary was generated by AI based on customer reviews.
  • Overall Performance (20)
  • Storage Capacity (10)
  • Read/Write Speed (7)
  • Heat Dissipation (6)
  • Compatibility (5)

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

    Works great

    Got this on a sale for $499. Can't find anything else that comes close in price and quality. Installed it on the Legion 5 gen 10. Didn't have to change anything in the BIOS. Laptop read it instantly on first boot. Tested speeds on AIDA64 and HWINFO. Speeds were as advertised. Now i have 3TB of steam games and 4k movies that can be loaded in an instant

    Posted by iAmKai

  • Rated 5 out of 5 stars

    Mac Mini M4

    Placed this into a Ugreen Thunderbolt 4 enclosure and this thing works great for all my video files and code compiles.

    Posted by RobinB

  • Rated 1 out of 5 stars

    No Warranty Support

    Drive failed after 3 months. Sent drive in for RMA and originally was offered an upgrade until support claimed it was "damaged" after holding it for a month. Will edit this if I end up getting a replacement or refund.

    Posted by Matt

  • Rated 5 out of 5 stars

    Fast, Cool, and Perfect for a Handheld Upgrade

    I installed the WD Black SN7100 4TB in my Lenovo Legion Go 2, and I’ve been really impressed so far. Performance is fast and smooth, but what I like most is that it runs cool and doesn’t seem to use much power, which is a big deal for a handheld. I was a little worried about heat and battery impact with a Gen 4 SSD, but it hasn’t been an issue at all. Load times are quicker, everything feels more responsive, and I haven’t noticed any thermal throttling. One thing worth mentioning is that this drive is extra thin. If you’re upgrading a Legion Go 2, you’ll want to use a thermal pad around 1.5mm thick, because the SSD itself isn’t thick enough to make good contact with the original thermal pad. Once that’s taken care of, installation is straightforward and it works great. Overall, it feels like a really good match for the Legion Go 2 if you want a lot of storage without adding extra heat or power draw.

    Posted by QuentynS

  • Rated 5 out of 5 stars

    Fast storage

    At first I loaded as a clone drive MBT, you will only get 2TB. Format as GPT and you will get all 4TB of storage, actually 3.7TB. i use this as my gaming storage and work files with a 1TB SSD as a boot disk. Works amazing for the price. I have not done any speed testing but I blink and my game is loaded, that's all I have to say. So good!

    Posted by Matt

See all customer reviews

Compare similar products

WD - BLACK SN7100 4TB Internal SSD Gen 4 x4 NVMe
WD - BLACK SN7100 4TB Internal SSD Gen 4 x4 NVMe
4.9(52)

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.

Western Digital - WD_BLACK SN7100 M.2 2280 4TB PCI-Express 4.0 x4 TLC 3D NAND Internal Solid State Drive (SSD) WDS400T4X0E
Western Digital - WD_BLACK SN7100 M.2 2280 4TB PCI-Express 4.0 x4 TLC 3D NAND Internal Solid State Drive (SSD) WDS400T4X0E
5.0(1)

WD_BLACK SN7100 M.2 2280 4TB PCI-Express 4.0 x4 TLC 3D NAND Internal Solid State Drive (SSD) WDS400T4X0E

Samsung - 990 EVO PLUS SSD 4TB, PCIe Gen 4x4 | 5x2 M.2 2280, Speeds Up to 7,250 MB/s
Samsung - 990 EVO PLUS SSD 4TB, PCIe Gen 4x4 | 5x2 M.2 2280, Speeds Up to 7,250 MB/s
4.8(299)

With faster read/write speeds of up to 7,250/6,300 MB/s*, larger storage capacity of up to 4TB with TurboWrite 2.0 and 73% ** greater power efficiency compared with the 990 EVO, the 990 EVO Plus makes large editing, file transfer or gaming tasks go smoother and faster. It’s the perfect productivity boost helping you tackle a busy day full of work (or play).

SANDISK - 4TB Optimus GX 7100 PCIe 4.0 x4 M.2 2280 NVMe SSD
SANDISK - 4TB Optimus GX 7100 PCIe 4.0 x4 M.2 2280 NVMe SSD
Not Yet Reviewed

Game even faster with the SANDISK Optimus GX 7100 NVMe SSDs with PCIe Gen 4.0 boasting Sequential Read/Write speeds up to 7,250/6,900MB/s (1TB and 2TB models). Improve system responsiveness and help minimize game lag with Random Read/Write speeds up to 1M/1.4M IOPS (1TB and 2TB models) and integrated SANDISK nCache Technology. With a power-efficient architecture for laptops and handheld gaming consoles, conquer your gaming sessions or creative workflows while on-the go. Store more games and content with capacities up to 4TB on M.2 2280.

Pros for WD - BLACK SN7100 4TB Internal SSD Gen 4 x4 NVMe
Overall Performance, Storage Capacity, Heat Dissipation, Read/Write Speed, CompatibilityThere were no pros for this product—Overall Performance, Storage Capacity, Heat Dissipation, Speed, Installation EaseThere were no pros for this product—

Specs

Questions & Answers

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

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

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

  • What interface does the WD_BLACK SN7100 NVMe SSD use?

    It utilizes a PCIe Gen4 interface.

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

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

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

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

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

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

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

  • How much storage space does this SSD offer?

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

    This question and answer was generated by AI based on customer and product data.
Ask a question
No content

Customers often buy these together

Computer Memory

Drive Enclosures

More recommended items

  • 200 PNY
    Graphics Cards
  • For this GAHERS, DARE, WHO SINCE 2009. 500+ WIFI GAMING X87-F STRIX ROG. ROG PUSH 2.5 GHZ. 121-2817.37 MHz. 18. OF REPUBLIC. 15.7 GAMERS.
    Motherboards
  • AMD RYZEN 7 9000 SERIES PROCESSOR
    Processors
  • Corsair RM1000x is a powerful computer component that serves as a power supply unit. It is designed to provide efficient and reliable power to the motherboard and other components of a computer system. The RM1000x features a sleek black design and is equipped with a high-quality fan to ensure proper cooling. It is compatible with both SATA and PATA drives, making it suitable for a wide range of computer systems.
    Computer Power Supplies
  • Front. Microsoft - Windows 11 Home - USB Flash Drive - English.
    Operating Systems
  • Front. CORSAIR - TM30 Performance Thermal Paste.
    Computer Repair and Installation Tools

More to consider

Sponsored

Discover related products

Keep exploring

Sponsored
Sponsored

Special Offers

Included with Purchase