WD_BLACK SN850X Spec and Price in Spain
Released May 9, 2022
Western Digital's flagship gaming NVMe drive pairs a dedicated DRAM cache with an in-house 8-channel controller to sustain 7,300/6,600 MB/s sequential read/write and random IOPS north of a million in each direction. Endurance is rated at 1,200TB written with a 5-year warranty, giving it a DRAM-backed architecture the newer DRAM-less SN7100 lacks even though both hit similar peak throughput. Enthusiasts building a gaming or creative workstation who want that traditional cache reliability profile are the target buyer.
Tied 20th of 106 models in the SSD catalog on Sequential read — 6 models share this figure. Tied 24th of 106 models in the SSD catalog on Sequential write — 4 models share this figure.
Prices include VAT.
Captured periodically and may have changed.- 1TB
- 2TB
- 4TB
- 8TB
Each point is one capture, not a list price. How we track prices
Specifications
- Capacity
- 2TB
- Interface
- NVME
- Sequential read
- 7300 MB/s
- Sequential write
- 6600 MB/s
- Random read
- 1200000 IOPS
- Random write
- 1100000 IOPS
- PCIe generation
- 4
- Form factor
- M.2 2280
- NAND type
- TLC
- DRAM cache
- Controller
- Western Digital in-house 8-channel controller
- Endurance (TBW)
- 1200 TB
- Warranty
- 5 years
Capacities
| Configuration | Part number | Endurance (TBW) | Sequential write | Sequential read | Current best price | Price per TB |
|---|---|---|---|---|---|---|
| 1TB | WDS100T2X0E | 600 TB | 6300 MB/s | 7300 MB/s | 189,90 € at Amazon.es · captured 2026-09-11 | 189,90 €/TB |
| 2TB | WDS200T2X0E | 1200 TB | 6600 MB/s | 7300 MB/s | 299,90 € at Amazon.es · captured 2026-09-09 | 149,95 €/TB |
| 4TB | WDS400T2X0E | 2400 TB | 6600 MB/s | 7300 MB/s | 459,90 € at Amazon.es · captured 2026-09-04 | 114,98 €/TB |
| 8TB | WDS800T2X0E | 4800 TB | 6600 MB/s | 7200 MB/s | 1945,73 € at Amazon.es · captured 2026-09-15 | 243,22 €/TB |
Guides for this category
What owners and reviewers say
Summarised from 4 source(s), reviewed September 13, 2026. A source is counted only where it names this model exactly. How we track prices
Commonly praised
- Reviewers rate its overall performance highly and place it near the top of the leaderboard for application-level latency.
- It comes in a spread of capacities and offers an optional heatsink and RGB lighting.
- Sequential read and write throughput at large block sizes is described as solid.
- Software support and the warranty are considered adequate for the class.
- Owners find it consistently fast and good value against pricier flagships.
- Large capacities and reliable operation are recurring themes, including in a console.
- Reviewers describe it as extremely fast, with boot times around ten seconds and load times almost eliminated.
- It is called absolutely reliable and stable, with good gains when moving large files such as 4K video.
Commonly criticised
- Its price was called out as expensive at review time.
- The Game Mode feature is seen as somewhat gimmicky rather than a meaningful differentiator.
- One review found random write performance weak in synthetic testing.
- It is described as a modest step over the drive it replaced rather than a generational leap.
- It is expensive at full price, and most owners say they waited for a sale.
- A buyer measured sequential speeds slightly below the advertised values, noting results depend on the whole system.
Sources behind this summary
- alternate.de — 5 out of 5 (10 ratings), as of September 13, 2026
- Newegg — 4.8 out of 5 (1279 ratings), as of September 13, 2026
- StorageReview — review
- Tom's Hardware — review
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.