
Seagate
Seagate Expansion 3TB Desktop External Hard Drive USB 3.0
USB 3.0USB 2.0
Add 3TB of plug-and-play storage to your desktop setup with fast USB 3.0 transfer speeds.
$149.51*
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*Price sourced from Amazon.com. Last updated:Sep 04, 2026.Price and availability are subject to change — details.
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Overview
Key Features
Easy and simple to use - simply plug in the power adapter and USB cable
Fast file transfers with USB 3.0
Compatible with USB 3.0 and USB 2.0
Instantly add 3 TB of storage space to your computer
Simple plug-and-play connectivity via USB cable
Power supply and USB 3.0 cable included
USB 3.0 interface for extremely fast data transfer speeds (USB 2.0 compatible)
Drive is automatically recognized by Windows; no software instillation required
Specifications
Brand
Seagate
Model
Expansion
Capacity
3TB
Interface
USB 3.0 (backward compatible with USB 2.0)
Drive Type
Desktop External Hard Drive
Setup
Plug and Play
Frequently Asked Questions
Does the Seagate Expansion 3TB require any software installation?
No, it is a plug-and-play drive. Simply connect the USB cable and power adapter, and the drive is ready to use.
Is this drive compatible with USB 2.0 ports?
Yes, it is backward compatible with USB 2.0, though transfer speeds will be limited to USB 2.0 rates.
Does this external hard drive require an external power source?
Yes, this is a desktop external drive that requires its own power adapter — it does not run on USB bus power alone.
What file system does the drive come formatted with?
Seagate Expansion desktop drives typically come pre-formatted for Windows (NTFS). Mac users will need to reformat the drive to use it natively with macOS.
Is this a solid-state drive or a traditional hard drive?
This is a traditional spinning hard disk drive (HDD), not an SSD.