US
Seagate

Seagate STGX2000400 Portable Hard Drive 2TB

  • Digital Storage Capacity: 2 TB
  • HardDrive Size: 2 TB
  • Hard Disk Interface: USB 3.0
  • Hardware Connectivity: USB 3.0

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A dependable everyday backup drive for Windows and Mac once it is reformatted, priced for buyers who want simple file overflow rather than peak speed.

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ASIN: B07CRG94G3Model: STGX2000400Category: External Hard Drives

Sizes Available

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Overview

The Seagate Portable Drive (STGX2000400) is a 2TB USB 3.0 external hard drive built for drag-and-drop backup on Windows and Mac, with no software install required. It ships with an 18 inch USB 3.0 cable, a one-year warranty, and a bundled Adobe Creative Cloud trial.

This is Seagate's baseline consumer backup drive, not a ruggedized or NAS-class unit, so treat it as a place to copy files rather than a primary working drive for constant read and write. Mac users need to reformat it from Windows format to a Mac-friendly one in Disk Utility before first use, a short step that catches some buyers off guard. A few long-term owners have compared its throughput and power draw unfavorably against WD's Elements line.

  • 2TB capacity
  • USB 3.0 with 18 inch cable
  • Works with Windows and Mac
  • Adobe Creative Cloud trial included

Who it's for

Musicians, photographers and anyone who just wants a second copy of their files fits this drive well. Buyers chasing the fastest possible transfer speeds, or running it constantly off a laptop port that struggles to power hungry USB devices, may want a different model.

Pros and cons

Pros
  • Plug and play on Windows with no software
  • Compact enough to travel with a laptop
  • Reformats cleanly for Mac in one pass
  • Backed by a one-year warranty
Cons
  • No SMART drive health monitoring
  • Can draw more power than some USB ports supply
  • Occasional unit arrives with a bad cable connection

Performance notes

USB 3.0 plug and play recognition works immediately on Windows; Mac users run a one-time reformat through Disk Utility, after which the drive mounts automatically. One long-term owner found the drive lacks SMART health monitoring and pulls more power than some laptop ports comfortably supply, with throughput described as erratic rather than consistently fast.

Where it stands among external hard drives

  • #4 most-searched brand and model of the 58 external hard drives lines we track (by search demand, not sales).

From the specs of the 159 external hard drives we list; not a test result.

Specifications

BrandSeagate
ModelSTGX2000400
Dimensions & fit
HardDrive Size2 TB
Cache Memory Installed Size2 TB
Item Weight0.42 poundslower than 70% of 24 external hard drives
Item Dimensions L x W x Thickness4.6 × 3.1 × 0.6 inches
Capacity & performance
Digital Storage Capacity2 TBlower than 57% of 148 external hard drives
Media Speed120 MB/s
Construction & materials
ColorPORTABLE
Compatibility & installation
Hard Disk InterfaceUSB 3.0
Hardware ConnectivityUSB 3.0
Connectivity TechnologyUSB
Compatible Video Game Console ModelsSony PlayStation 4
Compatible DevicesLaptop
Included components
Customer Package TypeFFP
Warranty & support
Warranty Description1 year
Other details
Form FactorPortable
Hard Disk Form Factor3.5 incheshigher than 72% of 120 external hard drives
Hard Disk DescriptionMechanical Hard Disk
Hardware PlatformMac, PC
Data Transfer Rate1000 Mbpslower than 60% of 21 external hard drives
Number of Items1
Additional FeaturesPortable
Mfr Part NumberSTGX2000400
Specific Uses For Productbusiness, personal
BuiltIn MediaSeagate Portable Drive 2TB USB3.0

Closest rivals on specs

WD My Book Essential Desktop Hard Drive 500GB
  • Data Transfer Rate 1000 vs 480 Mbps (+108%)
WD My Book Essential Desktop Hard Drive 1TB
  • Digital Storage Capacity 2 vs 1 TB (+100%)
LaCie d2 Thunderbolt 2 Desktop Hard Drive 3TB
  • Digital Storage Capacity 2 vs 3 TB (-33%)
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Frequently asked questions

Does the Seagate STGX2000400 work with Mac out of the box?

It needs a one-time reformat in Disk Utility first since it ships formatted for Windows, and after that it mounts automatically.

Does this Seagate drive need external power?

No, it runs off the USB 3.0 connection alone, though one owner found it draws more power than some laptop ports can reliably supply.

Is there a warranty on the STGX2000400?

Yes, Seagate covers it for one year, and the listing includes a trial of Adobe Creative Cloud.