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Western Digital WDS100T2X0E-EC Western Digital SN850X 1TB M.2-2280 PCIe Gen4 x 4 NVMe (Read Up to 7,300MB/sec) Internal SSD
Western Digital

Western Digital Western Digital SN850X 1TB M.2-2280 PCIe Gen4 x 4 NVMe Internal SSD

Bottom line: The Western Digital WDS100T2X0E-EC Western Digital SN850X 1TB M.2-2280: Gen4 x4 sequential reads up to 7,300MB/s; main trade-off: ships without a heatsink; PS5 users must add one.

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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.

Pros & Cons

Pros

  • ✓ Gen4 x4 sequential reads up to 7,300MB/s
  • ✓ 6,300MB/s sequential writes for large file transfers
  • ✓ Standard M.2-2280 fits most desktop and PS5 slots
  • ✓ 5-year Western Digital warranty on the WD_BLACK SN850X

Cons

  • ✗ Ships without a heatsink; PS5 users must add one
  • ✗ Gen4 x4 speeds wasted on Gen3-only motherboards
  • ✗ M.2-2280 only; no 2242 or 2260 short-slot option
  • ✗ Endurance and DRAM cache specs not listed by the seller

Manufacturer description

Series : WD Black SN850XCapacity: 1TBInterface : PCIe Gen 4 x 4Warranty: 5 years

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SpecPicks Verdict

SpecPicks scored Western Digital WDS100T2X0E-EC Western Digital SN850X 1TB M.2-2280… 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.

Key Features

  • M.2-2280
  • PCI-E Gen4 x 4
  • Sequential Read: Up to 7,300Mbps
  • Sequential Write: 6300Mbps
  • Models without heatsink

Full Specifications

BrandWestern Digital
Colorブラック
Model NameSN850X
Read Speed7300 megabytes_per_second
Unit Count1 Count
Form FactorM2
Media Speed5000MB/sec
Model NumberWDS100T2X0E-EC
Hard-Drive Size1 TB
Mfr Part NumberWDS100T2X0E-EC
Number of Items1
Sequential ReadUp to 7,300Mbps
Special FeatureNo Heatsink (Some Models)
Sequential Write6300Mbps
Installation TypeInternal Hard Drive
Compatible Devicesデスクトップ
Data Transfer Rate16 gigabits_per_second
Additional FeaturesNo Heatsink (Some Models)
Hard Disk InterfaceNVMe
Hard Disk DescriptionSolid State Drive
Full listing titleWestern Digital WDS100T2X0E-EC Western Digital SN850X 1TB M.2-2280 PCIe Gen4 x 4 NVMe (Read Up to 7,300MB/sec) Internal SSD

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Western Digital WDS100T2X0E-EC Western Digital SN850X 1TB M.2-2280 PCIe Gen4 x 4 NVMe (Read Up to 7,300MB/sec) Internal SSD 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.

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Western Digital WDS100T2X0E-EC Western Digital SN850X 1TB M.2-2280 PCIe Gen4 x 4 NVMe (Read Up to 7,300MB/sec) Internal SSD
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