Seagate Expansion 1TB (STGX1000400) Portable External Hard Drive – USB 3.0, Bus-Powered Storage

The Seagate Expansion 1TB (STGX1000400) is a portable external hard drive with a USB 3.0 connection. It draws power from the USB port, so you can carry and back up files anywhere without a power adapter.

Deep-Dive Story & Problem/Solution

Running Out of Space on the Go

Laptops with small SSDs fill up fast, and relying on cloud uploads for large files is slow on hotel or mobile connections.

The STGX1000400 gives you 1TB of local storage that connects in seconds. It is plug-and-play — drag and drop files, or schedule automatic backups with your preferred backup software.

Compact, Bus-Powered Design

The compact enclosure needs only one USB cable for both data and power, making it easy to carry between home, office and travel.

Works with Windows, macOS and More

Windows and macOS; works with PS4/PS5 and Xbox for game storage. USB 3.0 delivers fast transfers on modern computers, and the drive remains compatible with older USB 2.0 ports.

Setup Instructions

How to Set Up the Seagate Expansion 1TB

1. Connect the included USB cable to the drive.
2. Plug the USB cable into a USB 3.0 port on your computer.
3. Wait for the drive to appear in File Explorer (Windows) or Finder (macOS); reformat it in Disk Utility if you plan to use Time Machine.
4. Drag and drop files, or set up automatic backups using your preferred backup software.