Seagate

Seagate Expansion 2TB USB 3.0 Portable External Hard Drive (STBX2000401)

Name: Seagate Expansion 2TB USB 3.0 Portable External Hard Drive (STBX2000401)
Brand: Seagate
SKU: B00ILALU9G

Status: Seagate Expansion 2TB USB 3.0 Portable External… (2TB hard drive): Unavailable on Amazon as of 2026-10-21 02:15 UTC. Closest in-stock match (same 2TB hard drive): WD 2TB Elements Portable External Hard Drive for…, $131.80 on Amazon as of 2026-10-21 10:15 UTC (price may vary). eBay sellers may still list this model new or used.

View Current Price — $131.80 🛒 Search eBay for this model

Bottom line: The Seagate Expansion 2TB USB 3.0 Portable External Hard Drive: Full 2TB of add-on capacity in a bus-powered portable drive; main trade-off: windows-focused: no bundled Mac software mentioned by Seagate.

Unavailable on Amazon as of 2026-10-21 02:15 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives with matching specs:

Same 2TB hard drive: WD 2TB Elements Portable External Hard Drive for… — $131.80 on Amazon as of 2026-10-21 10:15 UTC (price may vary).

View Current Price — $131.80

Same 2TB hard drive: Seagate Expansion Portable — $159.00 on Amazon as of 2026-10-21 12:15 UTC (price may vary).

View Current Price — $159.00

Same 2TB hard drive: Seagate Backup Plus Slim 2TB External Hard Drive… — $171.95 on Amazon as of 2026-10-21 06:15 UTC (price may vary).

View Current Price — $171.95

Original listing (currently unavailable) → Compare to similar external storage

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-20

Mike Perry — Hardware researcher since 2014. For external drives and portable storage, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Full 2TB of add-on capacity in a bus-powered portable drive
✓ USB 3.0 interface for fast large-file transfers
✓ Backward compatible with older USB 2.0 ports
✓ No AC adapter needed - runs off the USB port alone

Cons

✗ Windows-focused: no bundled Mac software mentioned by Seagate
✗ Spinning-platter drive, so slower than an SSD of the same size
✗ Usable capacity is under 2TB after formatting, per Seagate
✗ Single USB cable is the only connection - no USB-C port listed

Manufacturer description

The Seagate Expansion 2TB Portable External Hard Drive (STBX2000401) adds two full terabytes to any Windows machine through a single USB cable, with no AC adapter and no software to install. Plug it into a USB 3.0 port and Windows recognizes the drive automatically, so you can drag and drop files within seconds of unboxing. The USB 3.0 interface handles large transfers, and it stays backward compatible with USB 2.0 ports if you are pairing it with an older laptop or desktop. Bus power is the practical win here: the drive draws everything it needs from the port, so your travel kit is the…

SpecPicks Verdict

SpecPicks scored Seagate Expansion 2TB USB 3.0 Portable External Hard Drive 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 2TB need a separate power adapter?

No. Seagate lists the drive as USB powered, so it draws power from the USB port on your computer and requires no AC adapter.

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 transfer speeds will drop to USB 2.0 rates.

Do I have to install software before using it?

No. Seagate states the drive is automatically recognized by Windows with no software to install and nothing to configure - just drag and drop.

Does it work with a Mac?

Seagate's listed compatibility here is Windows, which recognizes the drive automatically. Mac users should check the product listing for current formatting and compatibility details.

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.
Instantly add 2 TB of storage space to your computer

Full Specifications

Brand	Seagate
Color	Black
Model Name	Expansion STBX2000401
Form Factor	2.5-inch
Connectivity	USB
Model Number	STBX2000401
Built-In Media	Seagate ExpansionPortable Drive 2TB USB3.0
Hard Disk Size	2 TB
Hard-Drive Size	2 TB
Mfr Part Number	STBX2000401
Number of Items	1
Hardware Platform	PC
Installation Type	External Hard Drive
Compatible Devices	Desktop
Data Transfer Rate	625 megabytes_per_second
Hard Disk Interface	USB 3.0
Hard Disk Description	External
Hard Disk Form Factor	2.5 inches
Hardware Connectivity	USB 3.0
Connectivity Technology	USB

Ready to buy?

Amazon shows no buyable offer for Seagate Expansion 2TB USB 3.0 Portable External… at the last check. The closest in-stock match with the same 2TB hard drive is WD 2TB Elements Portable External Hard Drive for…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $131.80