Cavernous storage at a refreshing price
Updated: Jul 9, 2025 3:18 pm
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Prime Day SSD deals are live, and we’re always in the market for a nice option from WD-Black, who are often the first name in cost -effective storage. 16% off this 4TB NVMe SSD might not sound like an enormous saving, but buying this amount of storage ain’t cheap, and every little bit helps!
If you’re still not sure and want to have a goosey gander at some other options, then take a look at our best M.2 NVMe SSD for gaming guide. If you’re after something a bit more transportable, also consider perusing our best external SSD guide.
Prices and savings subject to change. Click through to get the current deal prices.
Save 16% now!
WD_BLACK 4TB SN7100 NVMe Internal Gaming SSD Solid State Drive
– Gen4 PCIe, M.2 2280, Up to 7,000 MB/s – WDS400T4X0E [New Version]
Why we recommend the WD Black 4TB SN7100
The WD Black SN7100 stands out as a compelling value in the high-capacity SSD market, especially for gamers or creative users who need reliable, fast storage without overspending. While it doesn’t reach the top-end speeds of the SN850X, its price has become far more attractive – now even undercutting the Samsung 990 EVO Plus 4TB in many listings. This makes it a smart, cost-conscious option for those seeking strong all-around performance.
- High Performance: Capable of read speeds up to 7,000MB/s and write speeds up to 6,900MB/s, this drive is more than fast enough for gaming, large file transfers, and intensive applications.
- Massive Storage: With 4TB of space, it can comfortably hold dozens of AAA titles or high-resolution media files—up to 52 games at around 75GB each, or 40 large 100GB video files.
- Compact Form Factor: Built as an M.2 2280 drive, it’s compatible with most desktops, laptops, and gaming consoles that support PCIe Gen 4.
- Excellent Endurance: Rated for 2,400 terabytes written (TBW), the SN7100 is built for the long haul. Even writing 4TB per day, it would take over six and a half years to reach the endurance limit.
Who is this 4TB SSD Prime Day deal best suited for?
This deal is ideal for gamers and PC users looking for a high-capacity NVMe drive that balances affordability with reliable performance. The WD SN7100 makes a great choice as a dedicated game or media storage drive, offering solid speed for everyday use without the premium price tag of top-tier SSDs.
While it may not compete with the fastest-performing models, its Prime Day discount brings it $5 below the similarly positioned Samsung 990 EVO Plus, making it a more budget-friendly alternative. With a total of $40 off the regular price, it’s a worthwhile upgrade—whether you’re outfitting a new build or expanding storage on your current setup.