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Western Digital 4TB WD Blue SN5000 NVMe Internal Solid State Drive SSD - PCIe Gen 4.0, M.2 2280, Up to 5,500 MB/s - WDS400T4B0E [New Generation]
Western Digital

Western Digital 4TB WD Blue SN5000 NVMe Internal Solid State Drive SSD

Bottom line: The Western Digital 4TB WD Blue SN5000 NVMe Internal Solid State Drive SSD ($494.99 on Amazon as of 2026-10-06): Full 4TB capacity in a single M.2 2280 slot, no adapter or bracket needed; main trade-off: 5,500 MB/s trails Gen 4 flagships that push past 7,000 MB/s.

$494.99

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Buy on Amazon — $494.99 Compare to similar ssds & storage

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For SSDs and PC storage upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Full 4TB capacity in a single M.2 2280 slot, no adapter or bracket needed
  • ✓ Up to 5,500 MB/s reads on the 4TB model via PCIe Gen 4
  • ✓ 1,200TBW endurance rating on the 4TB model for heavy scratch-disk use
  • ✓ nCache 4.0 SLC caching keeps large sequential transfers responsive

Cons

  • ✗ 5,500 MB/s trails Gen 4 flagships that push past 7,000 MB/s
  • ✗ Gen 5 boards get no speed benefit from a Gen 4 drive
  • ✗ No heatsink included, so tight laptop or GPU-adjacent slots may throttle
  • ✗ Acronis True Image license is WD-branded and requires a separate download

Manufacturer description

The Western Digital WD Blue SN5000 4TB is a PCIe Gen 4 NVMe SSD built for creators who work with large project files and AI-enabled applications. In the 4TB configuration it reaches sequential read speeds of up to 5,500 MB/s, backed by Western Digital nCache 4.0 technology that keeps sustained transfers responsive when you are moving raw video, RAW photo libraries, or model weights between drives. The M.2 2280 form factor drops into a standard desktop motherboard slot or a compatible laptop without an adapter. Endurance is rated at up to 1,200TBW on the 4TB model, so heavy scratch-disk and…

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SpecPicks Verdict

SpecPicks scored Western Digital 4TB WD Blue SN5000 NVMe Internal Solid State Drive SSD using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Western Digital's ssds & storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How fast is the WD Blue SN5000 4TB?

Western Digital rates the 4TB model at up to 5,500 MB/s sequential read over PCIe Gen 4. Smaller capacities in the SN5000 line are rated differently; check the listing for the capacity you are buying.

Will the SN5000 fit my motherboard or laptop?

It is a standard M.2 2280 NVMe drive, which is the most common size on desktop boards and full-size laptops. Confirm your slot is M.2 2280 with NVMe (not SATA-only) support before ordering.

How long will this drive last under heavy writes?

The 4TB model is rated for up to 1,200TBW (terabytes written). That covers years of video scratch-disk and render-cache work for most creators before the write budget is a concern.

Can I clone my current drive instead of reinstalling Windows?

Yes. Western Digital provides a download of Acronis True Image for Western Digital, a migration tool for moving your existing files and system volume onto the SN5000.

Is it worth buying a Gen 4 drive if my board supports PCIe Gen 5?

The SN5000 runs at Gen 4 speeds in a Gen 5 slot with full backward compatibility. You are trading peak sequential throughput for 4TB of capacity, which is the better deal if you are storing large libraries rather than chasing benchmark numbers.

Key Features

  • Hold more masterpieces and enjoy inspiration with up to 4TB(1) capacity.
  • Harness AI and streamline your workflow with the combined power of PCIe Gen 4, up to 5,500MB/s(2) read speeds (4TB(1) model), and Western Digital nCache 4.0 Technology.
  • Switch smoothly between applications and projects with high-end NVMe storage technology.
  • Create confidently with up to 1,200TBW(3) (4TB(1) model) endurance for every step of your flow.
  • Download Acronis True Image for Western Digital data migration software to transfer your files(4).

Full Specifications

BrandWestern Digital
ColorBlue
Model NameWD Blue SN5000
Read Speed5500 Megabytes Per Second
Unit Count1.0 Count
Form FactorM.2 2280
Media Speed5000
Model NumberWDS400T4B0E
CompatibilitySwitch
Built-In MediaInternal SSD
Hard Disk Size4 TB
Hard-Drive Size4 TB
Mfr Part NumberWDS400T4B0E
Number of Items1
Special FeatureFree Acronis Download
Hardware PlatformPC
Installation TypeInternal Hard Drive
Compatible DevicesDesktop, Laptop, PC
Data Transfer Rate5500 Megabytes Per Second
Enclosure MaterialInformation Not Available
Full listing titleWestern Digital 4TB WD Blue SN5000 NVMe Internal Solid State Drive SSD - PCIe Gen 4.0, M.2 2280, Up to 5,500 MB/s - WDS400T4B0E [New Generation]

Ready to buy?

Western Digital 4TB WD Blue SN5000 NVMe Internal Solid State Drive SSD - PCIe Gen 4.0, M.2 2280, Up to 5,500 MB/s - WDS400T4B0E [New Generation] is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $494.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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Western Digital 4TB WD Blue SN5000 NVMe Internal Solid State Drive SSD - PCIe Gen 4.0, M.2 2280, Up to 5,500 MB/s - WDS400T4B0E [New Generation]
$494.99
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