WD WD_BLACK SN850X 2TB NVMe SSD Storage

WD WD_BLACK SN850X 2TB NVMe SSD

Brand
WD
Model
WD_BLACK SN850X 2TB NVMe SSD

WD_BLACK SN850X 2TB: high-end Gen4 TLC NVMe with DRAM, launched May 2022 and discontinued Jan 2026; ideal for boot drives, game libraries, and editing scratch.

Storage performance rankTop 3% of storage drives
TierHigh end?GixCore tierWhat a part was built to do — not what it costs.EntryBudgetMainstreamHigh endEnthusiastFlagship A part can be cheap because it is an ageing flagship, or because it is a current entry-level model. The tier tells you which.
ReleasedMay 2022
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Capacity2 TB
TypeSSD
InterfacePCIe
Read speed7300 MB/s
Write speed6300 MB/s
Form factorM.2
GixCore Editorial

Product overview

Released May 9, 2022, the WD_BLACK SN850X 2TB is Western Digital’s Gen4 NVMe follow‑up to the SN850 in the WD_BLACK gaming family. It was discontinued in January 2026 as SanDisk rebranded WD Blue/Black SSDs under the Optimus line, with the Optimus GX Pro 850X taking its place.

Positioned as a high_end PCIe 4.0 x4 TLC drive, it exists to deliver top‑tier Gen4 load times and strong sustained performance for gaming rigs and workstations. The 2TB model uses 3D TLC NAND, includes a dedicated DRAM cache, and carries a 1,200 TBW rating. It’s a solid fit as a fast OS boot drive, a large game library, or a 4K video‑editing scratch disk. Unique: dedicated DRAM cache for consistent responsiveness.

LifecycleDiscontinued 2026
Best for
  • boot drive
  • game library
  • video-editing scratch
Official product specifications
Pairing fit

Compatible Motherboards

Compatible options ranked for this part's performance class.

Budget pairings6 lower-tier compatible options

Specifications

At a glance iEach dot represents a catalog model. Farther right means a higher measured value, not necessarily a better fit.Measured against the storage drives catalog
Current modelCatalog models
Capacity2 TB
Higher than 48% of storage drives
Read speed7300 MB/s
Higher than 90% of storage drives
Write speed6300 MB/s
Higher than 81% of storage drives
Capacity
2 TB
Type
SSD
Read speed
7300 MB/s
Write speed
6300 MB/s
Form factor
M.2
Hardware Interface
PCIe 4.0 x4
Data Transfer Rate
64000 Mb/s
Interface
PCIe
Tdp
8 W