IN STOCK
Pay in 4 interest-free payments of $54.25
Own it from $10 per week
Include a Back Up Plan?
Shipping Options
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Key Features
- Large storage capacity of 4TB for files and documents.
- Compact and portable design.
- Fast data transfer speeds with USB 3.0 interface.
- Easy plug-and-play setup with no software required.
- Compatible with Windows and Mac computers.
Expansion portable hard drive
The Seagate Expansion portable hard drive is compact and perfect for on-the-go. Instantly add storage space to your computer and take large files with you when you travel.
Plug-in Instant Storage
Add extra storage in seconds with Seagate Expansion drives. With high-capacity desktop options, portable HDD options that fit in your pocket, and SSDs that are super light and credit card-sized — there is an Expansion drive for you.
Easy-to-Use Storage Solution
Easily start saving your digital files in seconds. All you have to do is plug it in — then drag and drop!
Rescue Data Recovery Services | We’ve Got Your Back
When the unexpected happens — like water damage or natural disaster —Rescue Services help you defend against data loss and retrieval costs, so you can rest easier.3
Why choose the Expansion portable hard drive?
Built for on-the-go, take on large files with up to 5 TB capacity (about 320,000 digital photos).
1 Reformatting may be required for use with Time Machine
2 Compatibility may vary depending on user’s hardware configuration and operating system.
3 Rescue Data Recovery Services not available in all countries.
Specifications
Description
- Search Snippet: The Seagate 4TB Expansion Portable Hard Drive STKM4000400 provides instant plug-and-play storage with 4TB capacity.
Global
- EAN: 0763649160480
- External Hard Drive Type: Portable
- Model Number: STKM4000400
General
- Colour: Black
Features
- Auto Backup: No
- Compact And Light: Yes
- Firewire Ports: No
- Full Hd Optimized: No
- Mac Compatible: Yes
- Password Protection: No
- Plug And Play: No
- Pre-Formatted: No
- Shock Resistant: No
- Windows Compatible: Yes
Memory/Storage
- Storage Capacity (GB): 4000
Compatibility
- System Requirement: Windows and macOS
Interfaces/Ports
- Interface: USB 3.0
Dimensions
- Depth: 20.9mm
- Height: 115.3mm
- Width: 80mm
Weight
- Weight (Kg): 0.257
In The Box & Warranty
- Included: Seagate® Expansion portable hard drive 18 inch (46 cm) USB 3.0 cable Quick start guide Limited Warranty: AMER - 1 year, EMEA - 2 years, APAC - 3 years Rescue Data Recovery Services
- Warranty (Years): 1
Why Buy?
Store everything without slowing down your computer
Running out of space on your laptop or desktop means constantly deleting files to make room for new ones. This 4TB hard drive instantly gives you breathing room for years worth of photos, videos, documents and music without taking up any internal storage.
Setup takes seconds — just plug it in and start moving files with simple drag and drop. Moving large video files or backing up your entire photo collection happens quickly enough that you won't avoid doing it. The compact size fits easily in a bag or desk drawer, so you can take your files anywhere or store them safely at home. It works seamlessly with both Windows and Mac computers, eliminating compatibility headaches.
The reliable design means your files stay safe while freeing up your computer to run faster and smoother. Whether you're working from home, sharing files between devices, or just want peace of mind that everything important is backed up, this drive fits quietly into your routine without any technical complexity.
Buy this if…
- Your computer keeps warning you about low storage space
- You want simple file backup without cloud subscriptions
- You work with large video files or photo collections
- You need portable storage for work or study
- You switch between Windows and Mac computers







