The WD Black SN850X 4TB is now available at Best Buy for $599.99, a 65% discount from the $1,724.99 original price. This PCIe Gen 4 x4 NVMe drive delivers sequential read speeds up to 7,300 MB/s, making it one of the fastest internal SSDs for gaming PCs and workstations.
Key Takeaways
- WD Black SN850X 4TB drops to $599.99 at Best Buy, saving $1,125 from MSRP
- Sequential read speeds reach 7,300 MB/s for fast game loading and file transfers
- PCIe Gen 4 NVMe drive with TLC 3D NAND, 5-year warranty, and Game Mode 2.0
- 95% of Best Buy reviewers recommend the drive for performance and value
- Financing available: $50/month for 12 months at Best Buy
Why This Price Matters for Gaming Storage
At $599.99, the WD Black SN850X 4TB delivers high-capacity, high-speed storage without forcing gamers to juggle multiple smaller drives. The 4TB capacity eliminates constant uninstalls and reinstalls of modern titles, which often exceed 100GB each. For under $600, you get a drive that reads data faster than most external SSDs can transfer it.
The drive uses Western Digital’s TLC 3D NAND architecture and includes Game Mode 2.0 technology, which predicts in-game load patterns to optimize performance. Best Buy reviewers consistently praise the balance of speed and capacity, with one noting the drive lets users “take up less motherboard nvme slots” while saving money upfront. The 5-year limited warranty covers manufacturing defects, though SSDs rarely fail during normal use.
How the WD Black SN850X 4TB Compares
The WD Black SN850X 4TB sits above entry-level SSDs but below the premium tier. Samsung’s 990 PRO 4TB costs $299.99 on sale, but that’s a 2TB capacity difference—Samsung charges roughly $150 per additional TB at current pricing. For pure speed in the same capacity class, the WD Black SN850X matches Samsung’s 990 PRO architecture while undercutting it on price when both are discounted.
A heatsink variant, the WD Black SN850X with Heatsink, sells for $319.99 (down from $379.99) and suits PS5 owners who need thermal management in tight console spaces. If you’re building a desktop PC with good airflow, the standard version at $599.99 is the better value. The heatsink adds thermal protection but minimal speed advantage on a desktop where ambient cooling is adequate.
Availability and Financing Options
Best Buy’s $599.99 price includes in-stock inventory for delivery and in-store pickup. The retailer offers $50 monthly financing over 12 months, spreading the cost without requiring a credit card application. Walmart matches the $599.99 price with free shipping, while Newegg prices it at $698.00 with free 30-day returns.
International buyers should note that Best Buy Canada lists the drive at $169.58 monthly financing (12 months with fees) but does not offer in-store pickup. Price tracking shows the drive has ranged from $145.99 (Walmart, 2024) to $1,724.99 (Best Buy, February 2026), meaning this $599.99 deal sits in the middle-to-lower range historically.
Installation and Compatibility
The WD Black SN850X 4TB uses the standard M.2 2280 form factor, fitting any PC motherboard with an available NVMe slot. Most modern boards have at least two M.2 slots; check your motherboard manual to confirm which slots support Gen 4 speeds (some boards limit Gen 4 to specific slots). Installation takes minutes: power down, insert the drive at a 30-degree angle, and press down until the screw hole aligns.
For PS5 owners, the heatsink variant ($319.99) is required—Sony’s console rejects drives without thermal protection. The standard WD Black SN850X 4TB without heatsink will not fit the PS5 expansion slot.
Is the WD Black SN850X 4TB worth buying at this price?
Yes, if you need 4TB of fast NVMe storage for gaming or content creation. At $599.99, the cost-per-terabyte ($150/TB) is competitive with smaller capacity drives on sale. The 7,300 MB/s speed ensures game loading stays under 10 seconds for most titles, and the 5-year warranty provides peace of mind.
Does the WD Black SN850X 4TB work in PlayStation 5?
Only the heatsink variant (WD Black SN850X with Heatsink, currently $319.99) works in PS5. The standard WD Black SN850X 4TB without heatsink exceeds Sony’s thermal specifications and will be rejected during installation.
How does the 7,300 MB/s speed translate to real-world performance?
In gaming, 7,300 MB/s means loading screens for AAA titles typically complete in 5–10 seconds, compared to 15–20 seconds on SATA SSDs. For file transfers, a 4TB backup to an external drive completes in roughly 10–12 minutes. The speed advantage matters most for large game libraries and frequent file operations; casual users may not notice the difference versus slower Gen 3 drives.
The WD Black SN850X 4TB at $599.99 represents the rare intersection of capacity, speed, and price that makes upgrading from smaller drives a clear choice. If your motherboard has an open NVMe slot and you’re tired of managing storage space, this deal justifies the purchase.
This article was written with AI assistance and editorially reviewed.
Source: TechRadar
