Western Digital WD_Black SN850X 4TB NVMe Heatsink
4TB · NVMe · M.2
About this drive
This WD_Black SN850X is the 4TB version with a heatsink: an M.2 2280 NVMe drive listed at up to 7,300 MB/s read and 6,300 MB/s write (WDS400T2XHE). The $1,249.99 recorded on March 23, 2026 was Amazon's own price. Our classification marks it as a genuine Amazon first-party high. Two days earlier we had recorded $838.81, and two days later $699.99. For comparison, the median recorded price across 2025 was about $320.
Price History
Price history data licensed from Keepa. Prices update every few hours.
Price history table26 periods
Recorded low, average and high for every period with data.
| Period | Low | Average | High | Days |
|---|---|---|---|---|
| 2024 | $353.68 | $362.23 | $379.99 | 9 |
| Oct 2024 | $329.99 | $353.32 | $379.99 | 6 |
| Nov 2024 | $269.99 | $360.29 | $441.37 | 19 |
| Dec 2024 | $269.99 | $327.03 | $441.37 | 8 |
| Jan 2025 | $289.99 | $298.25 | $315.89 | 14 |
| Feb 2025 | $289.98 | $304.99 | $319.99 | 2 |
| Mar 2025 | $299.99 | $304.96 | $309.99 | 3 |
| Apr 2025 | $319.99 | $329.99 | $349.99 | 3 |
| May 2025 | $309.99 | $314.99 | $319.99 | 4 |
| Jun 2025 | $329.99 | $329.99 | $329.99 | 1 |
| Jul 2025 | $294.99 | $310.78 | $329.99 | 5 |
| Aug 2025 | $309.99 | $330.49 | $355.00 | 10 |
| Sep 2025 | $318.57 | $319.05 | $319.99 | 3 |
| Oct 2025 | $269.99 | $310.58 | $319.99 | 10 |
| Nov 2025 | $289.99 | $366.89 | $404.99 | 10 |
| Dec 2025 | $374.99 | $439.83 | $509.99 | 11 |
| Jan 2026 | $494.99 | $726.50 | $1,069.99 | 17 |
| Feb 2026 | $649.00 | $707.62 | $785.00 | 17 |
| Mar 2026 | $658.44 | $733.28 | $1,249.99 | 14 |
| Apr 2026 | $679.99 | $685.32 | $687.99 | 3 |
| May 2026 | $649.99 | $649.99 | $649.99 | 1 |
| Jun 2026 | $599.99 | $599.99 | $599.99 | 1 |
| Jul 2026 | $579.99 | $618.74 | $649.00 | 12 |
| Aug 2026 | $649.00 | $722.99 | $792.69 | 31 |
| Sep 2026 | $649.00 | $766.71 | $772.99 | 30 |
| Oct 2026 | $764.99 | $768.64 | $769.97 | 28 |
Price milestones
Dated events from this product's own tracked history.
- First tracked
- August 5, 2024
- All-time low
- $269.99 on November 18, 2024
- All-time high
- $1,249.99 on March 23, 2026
- Longest stretch without a real move
- 46 days, September 12, 2026 to October 28, 2026
Compared with similar drives right now
Same capacity and specification, in stock, priced per gigabyte against this one.
| Product | Price | Per GB | vs this |
|---|---|---|---|
| Western Digital WD_Black SN850X 4TB NVMe No Heatsink | $789.99 | $0.193/GB | +3% |
| Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe | $534.97 | $0.131/GB | -30% |
| Lexar 4TB NM790 PCIe Gen4 NVMe M.2 | $707.24 | $0.173/GB | -8% |
| Samsung 990 PRO 4TB NVMe | $799.90 | $0.195/GB | +5% |
| Acer Predator GM7 4TB : M.2 2280 PCIe NVMe | $908.88 | $0.222/GB | +19% |
Buy Now
| Retailer | Price | Availability | |
|---|---|---|---|
| Amazon | $764.99 | In Stock | View on Amazon → |
| Newegg | $799.99 | In Stock | View on Newegg → |
Prices may have changed at the retailers since our last check.
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Specifications
- Type
- NVMe
- Capacity
- 4TB
- Form Factor
- M.2 · with heatsink
- Price per GB
- $0.19 · 10th of 19 4TB NVMe M.2 drives
- Brand
- Western Digital
- Part number
- WDS400T2XHE
