Seagate
Seagate Expansion 28TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP28000400)
Bottom line: The Seagate Expansion 28TB External Hard Drive HDD ($1199.99 on Amazon as of 2026-10-06): 28TB in one desktop enclosure for photos, movies, music and backups; main trade-off: needs wall power from the 18W adapter, so it is not bus-powered or portable.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 28TB in one desktop enclosure for photos, movies, music and backups
- ✓ Windows and Mac recognize it automatically, no software install needed
- ✓ Drag-and-drop file saving works right out of the box
- ✓ Includes an 18-inch USB 3.0 cable and an 18W power adapter
- ✓ Rescue Data Recovery Services included alongside the limited warranty
Cons
- ✗ Needs wall power from the 18W adapter, so it is not bus-powered or portable
- ✗ Must be reformatted before use with Apple Time Machine
- ✗ Spinning HDD, so slower than an external SSD on large transfers
- ✗ Short 18-inch USB cable limits where you can place the drive
Manufacturer description
Need one place to keep years of photos, movies, music and full-system backups? The Seagate Expansion 28TB external hard drive (STKP28000400) gives you 28TB of desktop storage in a single enclosure. To set it up, plug in the included 18W power adapter and the 18-inch USB 3.0 cable. Windows and Mac computers recognize the drive automatically, with no software to install. After that, you save files by dragging and dropping them. If you want Apple Time Machine backups on a Mac, you have to reformat the drive first. It only takes one step. This is a desktop hard drive, not a bus-powered portable…
SpecPicks Verdict
SpecPicks scored Seagate Expansion 28TB 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.
Frequently Asked Questions
Does the Seagate Expansion 28TB work with Mac and Time Machine?
Yes. Mac and Windows computers recognize the drive automatically for drag-and-drop use. For Apple Time Machine backups, you need to reformat the drive first.
Does this external hard drive need a separate power supply?
Yes. It is a desktop drive that runs on the included 18W power adapter, so it needs a wall outlet as well as the USB connection to your computer.
What cable and connection does it use?
It comes with an 18-inch USB 3.0 cable. Seagate lists fast file transfers over USB 3.2. Actual speed depends on your computer's USB port and the files you move.
Do I need to install any software to use it?
No. Plug in the power adapter and USB cable and the drive is ready for drag-and-drop file saving on Windows or Mac. You only need to reformat it if you plan to use it with Time Machine.
What warranty and data recovery coverage is included?
The drive includes a limited warranty plus Seagate Rescue Data Recovery Services. Check the product listing for the current warranty length and Rescue coverage terms.
Key Features
- Easy-to-use desktop hard drive—simply plug in the power adapter and USB cable
- Fast file transfers with USB 3.2
- 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
| Brand | Seagate |
|---|---|
| Color | DESKTOP |
| Model Name | Expansion |
| Read Speed | 120 megabytes_per_second |
| Unit Count | 1 count |
| Form Factor | 3.5-inch |
| Connectivity | USB |
| Model Number | STKP28000400 |
| Compatibility | Mac |
| Built-In Media | External Hard Drive |
| Hard-Drive Size | 28 TB |
| Mfr Part Number | 8719706046008 |
| Number of Items | 1 |
| Special Feature | Data Recovery Service |
| Installation Type | External Hard Drive |
| Compatible Devices | Desktop |
| Data Transfer Rate | 4800 megabytes_per_second |
| Additional Features | Data Recovery Service |
| Hard Disk Interface | USB 3.0 |
| Warranty Description | 1 Year Limited |
Ready to buy?
Seagate Expansion 28TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP28000400) 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.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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