Seagate

Seagate Expansion Desktop 12TB External Hard Drive HDD - USB 3.0 for PC Laptop (STEB12000400)

Name: Seagate Expansion Desktop 12TB External Hard Drive HDD - USB 3.0 for PC Laptop (STEB12000400)
Brand: Seagate
SKU: B088PBV65K
Price: 299.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$299.99

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View Current Price on Amazon → Compare to similar external storage

*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.

Bottom line: The Seagate Expansion Desktop 12TB External Hard Drive HDD - USB 3.0 for PC Laptop (STEB12000400) is a niche pick — read recent reviews before buying in the external storage category, priced around $299.99. Compare close alternatives before committing.

The Seagate Expansion Desktop 12TB gives you room for years of photo libraries, 4K movie archives, music collections, and full system backups without juggling multiple smaller drives. This is a desktop-class external hard drive, so it draws power from the included 18W adapter rather than the USB port, and it connects over USB 3.0 using the included 18-inch cable. Setup is genuinely hands-off on Windows: plug it in, wait for automatic recognition, and start dragging files over. No bundled software to install, no account to create. Mac users can use the drive too, but you'll need to reformat…

SpecPicks Verdict

SpecPicks scored Seagate Expansion Desktop 12TB External Hard Drive HDD - USB 3.0 for… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis 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. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Enjoy enormous desktop storage space for years to come for photos, movies, music, and more
✓ Backed by Seagate's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Enjoy enormous desktop storage space for years to come for photos, movies, music, and more
Designed to work with Windows computers, this external USB drive makes backup easy with a simple drag-and-drop
Setup is easy! Just connect the external hard drive to your Windows computer for automatic recognition—no software required
Includes an 18-inch USB 3.0 cable and 18W power adapter
Enjoy long-term peace of mind with the included one-year limited warranty
The available storage capacity may vary.

Full Specifications

ASIN	B088PBV65K
Brand	Seagate
Color	Black
Series	Expansion Desktop
Hard Drive	12 TB Mechanical Hard Disk
Item Weight	2.09 pounds
Manufacturer	Seagate
Model Number	STEB12000400
Special Feature	Portable
Flash Memory Size	3 TB
Hardware Platform	PC
Installation Type	Plug In
Item model number	STEB12000400
Compatible Devices	Desktop, Laptop
Product Dimensions	6.93 x 4.75 x 1.44 inches
Hard Disk Interface	USB 3.0
Date First Available	May 15, 2020
Hard Drive Interface	USB 3.0
Item DimensionsLxWxH	6.93 x 4.75 x 1.44 inches
Hard Disk Description	Mechanical Hard Disk

Ready to buy?

Seagate Expansion Desktop 12TB External Hard Drive HDD - USB 3.0 for PC Laptop (STEB12000400) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.