Seagate
Seagate Expansion 1TB Portable External Hard Drive USB 3.0 (STBX1000101) (Old Model)
Bottom line: The Seagate Expansion 1TB Portable External Hard Drive USB 3.0 ($159.99 on Amazon as of 2026-10-07): USB bus-powered - no AC adapter to carry; main trade-off: older STBX1000101 model, not the current revision.
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*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
Pros & Cons
Pros
- ✓ USB bus-powered - no AC adapter to carry
- ✓ Plug-and-play: drive is auto-recognized, no software
- ✓ USB 3.0 interface for fast large-file transfers
- ✓ Backward compatible with older USB 2.0 ports
Cons
- ✗ Older STBX1000101 model, not the current revision
- ✗ Usable capacity is under the labeled 1TB
- ✗ Mechanical hard drive, not SSD - slower random access
- ✗ 1TB is tight for 4K video or large game libraries
Manufacturer description
The Seagate Expansion 1TB Portable External Hard Drive is the no-configuration answer to a full laptop SSD. It adds 1TB of storage over a single USB 3.0 cable, and because the drive draws power straight from your computer's USB port, there is no AC adapter or power brick to carry. Plug it in and the drive is automatically recognized, so there is no installation software, no formatting step, and no account setup before you can drag files across. USB 3.0 handles the transfer speeds, which matters when you are moving photo libraries, game installs, or video projects rather than a handful of…
SpecPicks Verdict
SpecPicks scored Seagate Expansion 1TB Portable External Hard Drive USB 3.0 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
Do I need to install any software to use this drive?
No. Seagate lists the drive as automatically recognized on connection - plug in the USB cable and it mounts, with no installation step.
Does it need a power adapter?
No. The Expansion is powered by the USB port itself, so there is no AC adapter or wall outlet required - one cable does data and power.
Will it work with a USB 2.0 port?
Yes. The drive uses a USB 3.0 interface but is listed as compatible with USB 2.0, though transfers run at the slower USB 2.0 speed on those ports.
Do I actually get a full 1TB of space?
Not quite. Seagate notes that available storage capacity may vary, so formatted usable space is somewhat below the labeled 1TB.
Is this the current Seagate Expansion model?
No. This is the STBX1000101, listed as an older model. Check the product listing for current warranty terms and newer revisions.
Key Features
- Easy and simple to use - plug it in and go
- Fast file transfers with USB 3.0
- Compatible with USB 3.0 and USB 2.0
- Powered by USB port
- The available storage capacity may vary.
Full Specifications
| Brand | Seagate |
|---|---|
| Color | Black |
| Model Name | Seagate Expansion |
| Read Speed | 625 Megabytes Per Second |
| Form Factor | 2.5-inch |
| Media Speed | USB 3.0 capable (>= 625 MB/s) |
| Connectivity | USB |
| Model Number | STBX1000101 |
| Built-In Media | Seagate Expansion drive, 18 inches USB 3.0 cable, Quick start guide |
| Hard-Drive Size | 1 TB |
| Mfr Part Number | STBX1000101 |
| Number of Items | 1 |
| Special Feature | USB Powered |
| Hardware Platform | PC |
| Installation Type | Plug In |
| Compatible Devices | Laptop |
| Data Transfer Rate | 5000 Megabits Per Second |
| Enclosure Material | plastic |
| Additional Features | USB Powered |
| Hard Disk Interface | USB 3.0 |
Ready to buy?
Seagate Expansion 1TB Portable External Hard Drive USB 3.0 (STBX1000101) (Old Model) 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 2026-10-07. Price and availability subject to change.
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