Seagate
Expansion Portable, 2TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC (STKM2000400)
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
Expansion portable drive is an easy-to-use solution for instantly adding storage to Windows or Mac—and taking those files on the go. Take advantage of fast data transfer speeds with USB 3.0 and consolidate files into a single location. Free up space on your computer with a simple drag and drop—file saving is that easy.
SpecPicks Verdict
SpecPicks classifies Seagate Expansion Portable, 2TB, External Hard Drive, 2.5 Inch, USB… as a solid pick with broad community endorsement in the external storage category, based on 12,499 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Seagate's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
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
- ✓ Highly rated — 4.5★ average across customer reviews
- ✓ Large, well-vetted feedback pool (12,499 reviews)
- ✓ Drag-and-drop file saving
- ✓ 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
- Sleek and simple portable drive design for taking photos, movies, music, and more on-the-go
- Drag-and-drop file saving
- USB 3.0 powered
- 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
- The available storage capacity may vary.
Full Specifications
| Brand | Seagate |
|---|---|
| Color | Black |
| Item Width | 81.1 Millimeters |
| Model Name | Seagate Expansion |
| Read Speed | 120 Megabytes Per Second |
| Unit Count | 1.0 Count |
| Form Factor | Portable |
| Item Length | 122.3 Millimeters |
| Media Speed | 120 Megabytes Per Second |
| Connectivity | USB |
| Model Number | STKM2000400 |
| Compatibility | PC, Mac |
| Built-In Media | Seagate ExpansionPortable Drive 2TB USB3.0 |
| Item Type Name | Portable Hard Drive |
Ready to buy?
Seagate Expansion Portable, 2TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC (STKM2000400) 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.
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
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