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Seagate Expansion Portable 1TB External Hard Drive HDD – USB 3.0 for PC Laptop (STEA1000400)
Seagate

Seagate Expansion Portable 1TB External Hard Drive HDD – USB 3.0 for PC Laptop (STEA1000400)

Bottom line: The Seagate Expansion Portable 1TB External Hard Drive HDD ($184.80 on Amazon as of 2026-10-20 22:18 UTC): 1TB capacity in a bus-powered portable shell — no wall adapter needed. Another in-stock pick with the same 1TB hard drive: the Toshiba Canvio Basics 1TB Portable External Hard…, $198.55 on Amazon as of (price may vary).

$184.80

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Buy on Amazon — $184.80 Compare to similar external storage

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

Mike Perry — Hardware researcher since 2014. For external drives and portable storage, 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 2026-10-20. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 1TB capacity in a bus-powered portable shell — no wall adapter needed
  • ✓ Zero-install setup: Windows auto-recognizes it on connect
  • ✓ Drag-and-drop backup workflow, no proprietary software required
  • ✓ USB 3.0 interface with an 18-inch cable included in the box

Cons

  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The Seagate Expansion Portable 1TB gives you a straightforward way to carry a full terabyte of files between Windows machines without wrestling with setup software. Plug it into a USB 3.0 port with the included 18-inch cable and Windows recognizes the drive automatically, so backing up a photo library or offloading a game install is a drag-and-drop job rather than a configuration project. The portable form factor draws power over the same USB cable, which means no wall adapter to pack alongside it. What stands out in this Seagate external hard drive is how little it asks of you. There is no…

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SpecPicks Verdict

SpecPicks scored Seagate Expansion Portable 1TB External Hard Drive HDD using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Seagate's external 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 external 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

  • Easily store and access 1TB of content on the go with Seagate Expansion Portable hard drive
  • This external hard drive for Windows computers makes backup a snap—just drag-and-drop!
  • To get set up, connect the portable hard drive to your Windows computer for automatic recognition—no software required
  • This USB drive provides plug-and-play simplicity with the included 18-inch USB 3.0 cable
  • Enjoy long-term peace of mind with the included one-year limited warranty
  • The available storage capacity may vary.

Full Specifications

BrandSeagate
ColorBlack
Model NameExpansion
Unit Count1 Count
Form FactorPortable
Media Speed≤ 5 Gb/s
ConnectivityUSB
Model NumberSTEA1000400
CompatibilityPC
Built-In MediaSeagate ExpansionPortable Drive 1TB USB3.0
Hard-Drive Size1 TB
Mfr Part NumberSTEA1000400
Number of Items1
Special FeaturePortable
Hardware PlatformPC, Mac
Installation TypeExternal Hard Drive
Compatible DevicesLaptop
Additional FeaturesPortable
Hard Disk InterfaceUSB 3.0
Warranty Description2 years

Ready to buy?

Seagate Expansion Portable 1TB External Hard Drive HDD – USB 3.0 for PC Laptop (STEA1000400) 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 — $184.80

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

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Seagate Expansion Portable 1TB External Hard Drive HDD – USB 3.0 for PC Laptop (STEA1000400)
$184.80
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