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Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400)
Seagate

Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400)

Bottom line: The Seagate Expansion 8TB External Hard Drive HDD ($328.75 on Amazon as of 2026-10-21 12:20 UTC): 8TB of capacity holds large photo, video and game-library archives; main trade-off: needs an AC outlet via the 18W adapter, so it is not bus-powered or portable.

$328.75

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Buy on Amazon — $328.75 Compare to similar drives & media

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

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 8TB of capacity holds large photo, video and game-library archives
  • ✓ Plug-and-play on Windows and Mac with no software install needed
  • ✓ USB 3.0 interface for faster bulk transfers than USB 2.0
  • ✓ Rescue Data Recovery Services included alongside the limited warranty
  • ✓ Ships with an 18-inch USB 3.0 cable and an 18W power adapter

Cons

  • ✗ Needs an AC outlet via the 18W adapter, so it is not bus-powered or portable
  • ✗ Must be reformatted before it works with Apple Time Machine
  • ✗ Short 18-inch cable limits where the drive can sit on your desk
  • ✗ USB 3.0 Type-A connection, with no native USB-C cable in the box

Manufacturer description

The Seagate Expansion 8TB External Hard Drive (STKP8000400) gives you a large amount of desktop storage for photo libraries, movie collections, music archives and full-system backups. It is built for a home office, a dorm desk or a media setup, and it is meant to sit beside your computer rather than travel in a bag. Setup takes two connections: plug in the included 18W power adapter and the 18-inch USB 3.0 cable. Windows and Mac computers recognize the drive automatically, and you don't need to install any software. You can drag and drop files to save them as soon as you unbox it. Mac users…

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SpecPicks Verdict

SpecPicks scored Seagate Expansion 8TB External Hard Drive HDD using a rating × review-volume × price-fit model applied to published specs and reviews across the drives & media category. Seagate's drives & media 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 drives & media 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

Does the Seagate Expansion 8TB need its own power supply?

Yes. This is a desktop drive that runs from the included 18W power adapter. It cannot draw power from the USB cable alone, so you need a nearby outlet.

Will this drive work with my Mac and Time Machine?

Macs recognize the drive automatically for drag-and-drop file storage. To use it with Apple Time Machine, you have to reformat it first, and reformatting erases any data on the drive.

Do I need to install software to use it on Windows?

No. Connect the power adapter and the USB 3.0 cable, and Windows recognizes the drive automatically. You can start saving files by drag and drop right away.

What cables come in the box?

The drive ships with an 18-inch USB 3.0 cable and an 18W power adapter. If you need a longer run or a USB-C connection, you will need to buy a separate cable or adapter.

What warranty and data recovery coverage is included?

Seagate includes a limited warranty and Rescue Data Recovery Services. The listing does not state the coverage length, so check the product listing or Seagate's support site for the current warranty and Rescue terms.

Key Features

  • Easy-to-use desktop hard drive—simply plug in the power adapter and USB cable
  • Fast file transfers with USB 3.0
  • Drag-and-drop file saving right out of the box
  • Automatic recognition of Windows and Mac computers for simple setup (Reformatting required for use with Time Machine)
  • Enjoy peace of mind with the included limited warranty and Rescue Data Recovery Services

Full Specifications

BrandSeagate
ColorDESKTOP
Model NameExpansion
Read Speed120 Megabytes Per Second
Unit Count1.0 Count
Form Factor3.5-inch
Media Speed15 MB/s
ConnectivityUSB
Model NumberSTKP8000400
CompatibilityMac
Built-In MediaExpansion Desktop External Drive 8TB USB3.0
Hard-Drive Size8 TB
Mfr Part NumberSTKP8000400
Number of Items1
Special FeatureData Recovery Service
Installation TypeExternal Hard Drive
Compatible DevicesDesktop
Data Transfer Rate5 Gigabits Per Second
Enclosure MaterialInformation Not Available
Additional FeaturesData Recovery Service

Ready to buy?

Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) 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 — $328.75

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400)
$328.75
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