Seagate Expansion 4TB Portable External Hard Drive USB 3.0 PC/Mac
Out of stock
Key Features
- 4TB Portable Storage
- USB 3.0 Connectivity
- Plug-and-Play Setup
- Lightweight & Compact Design
- PC & Mac Compatible
- Includes Rescue Data Recovery Services
The Seagate Expansion Portable STKM4000400 is a compact and reliable external hard drive designed to provide instant storage expansion for laptops, desktops, and gaming devices. With 4TB of storage capacity, it offers ample space for large photo libraries, video collections, music archives, and full system backups while maintaining a sleek and portable form factor.
Featuring a high-speed USB 3.0 interface, the drive delivers fast file transfers and efficient performance for everyday storage needs. Simply connect the drive to a USB port and start using it immediately — no additional software installation required. The drive is bus-powered through the USB cable, eliminating the need for an external power supply.
Preformatted in exFAT, the STKM4000400 is compatible with both Windows and Mac computers right out of the box. It also comes with Seagate Rescue Data Recovery Services, giving you added peace of mind. Designed for users on the go, the Seagate Expansion Portable 4TB combines generous storage capacity with dependable portability — ideal for students, professionals, travelers, and home users.
Ideal For
- Personal File Storage
- PC & Mac Backups
- Large Video Collections
- Photo Libraries
- Students & Home Office Users
- Travel Storage
- Gaming File Storage
- System Backup & Recovery
Specifications
- Capacity: 4TB
- Form Factor: 2.5-Inch
- Interface: USB 3.0 (Micro-USB)
- Dimensions: 115.3 x 80.0 x 20.9mm
- File System: exFAT (preformatted)
- Operating System Support: Windows 11, Windows 10, Windows 8.1, macOS
- Includes: USB 3.0 Cable, Rescue Data Recovery Services
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About Brand
About Brand
Shipping & Rerturns
Shipping & Rerturns
• Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
• Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Discover more in our FAQ
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How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1–2 business days. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
Do you ship internationally?
Do you ship internationally?
Currently, we only ship within the U.S. For international inquiries, please contact our support team.
What is your return policy?
What is your return policy?
We accept returns within 30 days of delivery. To be eligible, items must be unused, in their original packaging, and accompanied by proof of purchase. If the item is faulty or damaged, please contact us for further instructions. For returns due to reasons other than product defects or our error, customers are responsible for return shipping costs.

