Seagate 2TB Portable Hard Drive | USB 3.0 (STGX2000400)

Product image from current catalog data

Best Overall

Seagate 2TB Portable Drive (STGX2000400)

By Seagate

9.8Excellent matchFeature and use-case score

The Seagate 2TB Portable Drive (STGX2000400) is a bare-bones USB 3.0 external hard drive aimed at buyers who just need extra storage without paying SSD prices, and both Seagate's own spec sheet and one independent lab test back up its core claims — with a few caveats worth knowing before buying.

2TB of mechanical hard drive storage in a compact, pocketable enclosure
USB 3.0 (5 Gb/s) connectivity via included Micro-B cable, backward-compatible with USB 2.0 ports
Bus-powered design with no external power adapter required

See Price at the store →Price, delivery, and configuration can change at the retailer.

ByTopFiveFind Research Desk

How this was made: AI-assisted research and drafting organize the evidence. Exact product identity, source claims, owner-feedback patterns, conflicts, and publication checks are documented before indexing. No hands-on or human-expert testing is claimed unless a page explicitly shows that evidence. Read the full methodology.

Best fitBest Overall

CategoryData Storage

BrandSeagate

Catalog score9.8 / 10

Product overview

What this drive actually is

A traditional 2.5-inch spinning hard drive (not an SSD) in a plastic enclosure, rated for 2TB of storage.

Connects via USB 3.0 (also marketed by retailers as USB 3.2 Gen 1, the same 5 Gb/s spec under a newer USB-IF name) using a Micro-B cable, included in the box.

Bus-powered — no separate power adapter needed — and works on Windows, Mac, and Chromebook with no driver installation.

Seagate lists it at roughly 4.6 x 3.15 x 0.58 inches per retailer listings (Seagate's own product page does not publish dimensions or weight).

Comes bundled with Seagate's Rescue Data Recovery Services offer and a limited warranty, though Seagate's page did not specify the warranty term for this exact SKU.

Also sold in 1TB, 4TB, and 5TB capacities under the same 'Portable Drive' line.

Key Listed Features

2TB of mechanical hard drive storage in a compact, pocketable enclosure

USB 3.0 (5 Gb/s) connectivity via included Micro-B cable, backward-compatible with USB 2.0 ports

Bus-powered design with no external power adapter required

Plug-and-play setup on Windows, Mac, and Chromebook with no driver installation

Bundled Rescue Data Recovery Services offer and a limited warranty

Independently measured sequential speeds of roughly 120-145 MB/s, consistent with a 5,400 RPM 2.5-inch mechanical drive

Good fit for

Good fit for anyone who wants cheap bulk backup storage for photos, videos, or documents and doesn't need ruggedness or top-tier speed.
Reasonable fit for gamers wanting extra library space on PS4/Xbox/PC, since the independent test showed transfer speeds in line with what a 5,400 RPM 2.5-inch drive is physically capable of.
Poor fit if you need drop/water resistance, USB-C connectivity, hardware encryption, or SSD-class speeds — this drive has none of those.

Check before buying

Confirm you're buying the current STGX2000400 SKU and not an older Backup Plus Slim or Expansion model — Seagate has sold several similarly named 2TB portable drives over the years with different specs.
Note the Micro-B USB connector: it's an older cable style, so check you're not expecting USB-C before buying.
Sequential speeds top out around 140 MB/s in independent testing — a mechanical-drive ceiling, not a defect, but don't expect SSD-like performance for large file transfers.
Seagate's own product page lists no dimensions, weight, or explicit warranty length for this SKU, so verify those details with your retailer's listing before purchase if they matter to you.

Research sources

Buying questions

Quick Answers

Is the Seagate STGX2000400 an SSD or a hard drive?

It's a traditional mechanical hard drive (HDD), not a solid-state drive. That keeps the price low but caps sequential speeds at roughly 120-145 MB/s, versus several hundred MB/s or more for an external SSD.

What real-world transfer speeds should I expect?

Independent lab testing from TechGearLab measured average sequential read speeds of about 139-142 MB/s and write speeds of about 127-142 MB/s depending on the operating system, with a 10GB file transfer completing in under two minutes.

Does it need an external power adapter?

No. It draws power directly from the USB port, so there's no separate power brick to carry or lose.

Is it compatible with Mac and PS4/Xbox?

Seagate's product page lists Windows, Mac, and Chromebook compatibility, and lists gaming storage (PS4/Xbox) as an intended use case; console compatibility for external HDDs typically depends on the console's own storage-expansion rules, which are worth double-checking on Sony's or Microsoft's own support pages.

Is this drive rugged or water-resistant?

No. Independent testing specifically noted the absence of impact protection or water/dust resistance as a downside, so it should be treated as a desk or bag drive, not a field-use one.

Why does the connector look different from newer USB-C drives?

This drive uses a Micro-B USB 3.0 connector rather than USB-C. It still delivers full USB 3.0 speeds, but the cable is less common today, so replacing a lost cable may take more hunting than a USB-C one would.

Does Seagate's 'USB 3.0' label mean something different from a retailer's 'USB 3.2 Gen 1' label?

No — USB 3.0 and USB 3.2 Gen 1 refer to the same 5 Gb/s data rate; the USB-IF renamed the spec after the fact, so seeing both terms used for this drive across Seagate's site and retailer listings is not a contradiction.

Seagate 2TB Portable Drive (STGX2000400)

What this drive actually is

Key Listed Features

Quick Answers

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