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Component overview

WD Black SN850X 4TB

Western Digital storage drive

CategoryStorage drives
Technical specifications

Verified manufacturer part number

WDS400T2X0E

Type

NVMe SSD

Interface

PCIe 4.0 x4

Interface Generation

PCIe 4.0

Form Factor

M.2 2280

PCIe Gen

PCIe 4.0

Capacity

4000GB

Seq Read

7300 MB/s

Seq Write

6600 MB/s

Endurance

2400 TBW

DRAM Cache

Yes

NAND Type

TLC

Warranty

5 years

Price estimate history

Uses market prices where available and reference estimates otherwise.

Component market or reference estimates for the selected 30 days; these are not guaranteed sale prices. Values range from €573 to €605, average €577, across 7 data points. Each point identifies its pricing source. Use the left and right arrow keys, or tap the chart, to inspect points.
Low€573High€605Avg€5777 data points

Swipe the chart sideways to inspect every date.

Pricing & Purchase

€731

Estimated total. Final price confirmed before ordering.

Online payment is unavailable for this product; request a quote instead.

Use the quote request on this page. It does not collect payment or card details; we email the exact price and availability.

Request a quote

Selected product: WD Black SN850X 4TB

This form only requests a written quote; it does not collect payment or card details. We email the exact price, availability, and any proposed substitutions first.

What happens after your quote request

  • The quote request does not collect payment or card details.
  • We confirm the exact component, model, and your main requirements.
  • We check current Estonian pricing and availability.
  • We flag known compatibility constraints based on the details you provide.
  • We send the exact price and any alternatives in a written quote.

Support and questions continue through the order or quote email thread.

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Trust and process

What happens after a component request

Exact item and availability

We confirm the model, price, and availability before fulfillment. A quote request does not collect payment.

Compatibility scope

We check known size, power, and interface constraints. Final compatibility depends on the rest of your system.

Handover in Estonia

Pickup or local delivery method and timing are agreed after availability is confirmed.

Returns, warranty, and support

Handling depends on order state and the component, manufacturer, and retailer terms. Questions continue by email.

Trust details

Important before ordering

Contact and support

Replying to the order or quote confirmation is the fastest path.

Exact item and fit

We confirm the model, availability, and price. Existing-system compatibility depends on the complete parts list.

Delivery and returns

Handover is agreed after availability is confirmed. Returns depend on order state and applicable terms.

Pricing basis

The page distinguishes market data, estimates, and written quotes. A component price does not include whole-system service.