Seagate Expansion STKP6000400 6 TB Desktop Hard Drive - External - Black, 7" x 1.6" x 4.9"
Bottom line: The Seagate Expansion STKP6000400 6 TB Desktop Hard Drive ($229.00 on Amazon as of 2026-10-21 12:20 UTC): 6 TB capacity for large photo, video and music libraries; main trade-off: needs a wall outlet, so it isn't suited to travel.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 6 TB capacity for large photo, video and music libraries
- ✓ USB 3.0 connection for faster transfers than USB 2.0 drives
- ✓ Windows and macOS recognize it automatically, no software to install
- ✓ Power supply and USB cable included in the box
- ✓ Compact 7 x 1.6 x 4.9 in. enclosure fits beside a monitor
Cons
- ✗ Needs a wall outlet, so it isn't suited to travel
- ✗ Spinning hard drive, slower than an external SSD
- ✗ Uses USB 3.0, not USB-C or Thunderbolt
- ✗ Listing does not state RPM, cache size or transfer speeds
Manufacturer description
The Seagate Expansion STKP6000400 is a 6 TB external desktop hard drive that adds storage to a PC or Mac over a single USB 3.0 cable. Use it to collect a growing photo library, video archive or music collection in one place. You can also move bulky files off your computer's internal drive to free up space there. Setup takes two steps: connect the included power supply, then plug in the included USB cable. Windows and macOS recognize the drive automatically, so you don't need to install software or change any settings before saving files. Seagate says 6 TB is enough for millions of images…
SpecPicks Verdict
SpecPicks scored Seagate Expansion STKP6000400 6 TB Desktop Hard Drive using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Compare with similarly-priced alternatives in the external storage category before committing. 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 6TB desktop drive need its own power supply?
Yes. It is a desktop drive that runs on the included power supply. Connect that to an outlet and plug the included USB cable into your computer.
Will this drive work with both Windows and Mac?
Yes. Seagate says Windows and macOS recognize the drive automatically, so you don't need to install software or set anything up before saving files.
What connection does the Seagate Expansion STKP6000400 use?
It connects over USB 3.0 with the included USB cable. The listing does not mention a USB-C or Thunderbolt version.
How big is the Seagate Expansion 6TB drive?
The enclosure measures 7 x 1.6 x 4.9 inches and comes in black, so it fits on a desk next to a monitor or on a shelf.
What warranty comes with the Seagate Expansion 6TB?
The product context here does not list warranty terms. Check the current product listing or Seagate's support site for the warranty length and data recovery coverage.
Key Features
- Offers larger storage base capacity with maximum efficiency
- Is portable, can be carried anywhere to ensure maximum efficiency
- With 6 TB capacity you have ample space for storing millions of images, hundreds of hours of video or for music lovers, up to a million songs
- For super-fast data transfer, the drive takes advantage of USB 3.0 connectivity
- Hard Drive allows Mac apps to load much faster and without slowing down to ensure maximum productivity
Full Specifications
| Connectivity | USB |
|---|---|
| Compatibility | Mac |
Ready to buy?
Seagate Expansion STKP6000400 6 TB Desktop Hard Drive - External - Black, 7" x 1.6" x 4.9" 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 2026-10-21. Price and availability subject to change.
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