Seagate Expansion 1TB 2.5" 5400RPM USB 3.0 Portable External Hard Drive (STEA1000400)

Model Number: STEA1000400
Web Code: 10372820


Back up your files and take them on the go with the Seagate Expansion external hard drive. This portable device, compatible with Windows 8, has 1TB of storage space for all your photos, music, movies and more. The USB 3.0 interface makes it quick and easy to transfer data, while eliminating the need for external power.
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2 Years


3 Years


  • Compatible with Windows 7, Windows 8, Windows Vista and Windows XP SP3 (32 bit and 64 bit)
  • 1TB of space for all your storage needs
  • Slim design offers easy portability
  • Powered by a USB cable so there's no need for external power
  • No software installation required
  • USB 3.0 interface for fast data transfer speeds
  • Backwards compatible with USB 2.0
  • USB 3.0 cable and quick start guide included


Storage Drive Type
Portable Hard Drive
Internal or External
USB 3.0
Form Factor
2.5 in
PC/Mac Compatibility


1 TB
Rotations Per Minute (RPM)
5400 rpm


System Requirements
Windows® 8, Windows 7, Windows Vista®, Windows XP SP3 (32-bit and 64-bit) operating system


Dimensions (cm)
8 (W) x 11.7 (H) x 1.48 (D) cm
Dimensions (in)
3.15 (W) x 4.61 (H) x 0.58 (D) in
Product Weight
0.17 kg
  • Seagate Expansion Drive
  • USB 3.0 Cable
  • Quick Start Guide

  • Excellent Portable Hard Drive
    by SueG

    on January 16, 2020

    This hard drive is just what I need to back up my business daily. There's plenty of room for everything!

    Review originally posted on

  • Best HDD
    by MAhesh0402

    on January 15, 2020

    Good product, excellent quality - definitely recommend!

    Review originally posted on

  • DOA
    by TeachingRetro

    on January 14, 2020

    Tried 2 computers and 2 USB ports on each computer. I can hear it spinning, but never shows up as a drive. It is recognized in device manager, but not disk management. Should be plug and play, instead it's DOA.

    Review originally posted on

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