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Key Features
- 4TB portable hard drive with USB 3.0 connection
- USB 3.0 interface for fast data transfers
- Works with Windows, macOS and Chrome OS systems
- Lightweight design with Rescue Data Recovery Services
Key Specifications
- Brand:
- Seagate
- Model Number:
- STKM4000400
- Storage Capacity:
- 4TB
- Connections:
- USB 3.0
- Type:
- Portable Hard Drive
General Information
- Colour:
- Black
- System Requirements:
- Windows, macOS and Chrome OS systems
- What's In The Box:
- 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
- Manufacturer's Warranty:
- 3 Year
General Information
- Colour:
- Black
- System Requirements:
- Windows, macOS and Chrome OS systems
- What's In The Box:
- 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
Product Dimensions
- Product Height (mm):
- 115.3
- Product Width (mm):
- 80
- Product Depth (mm):
- 20.9
- Product Weight (g):
- 257
Box Dimensions
- Box Height (mm):
- 21
- Box Width (mm):
- 8
- Box Depth (mm):
- 115
- Box Weight (kg):
- 0
Product Reviews of Seagate 4TB Expansion Portable Hard Drive

Overall Rating Snapshot
4.8 out of 5 stars from 20 reviews
100% of users recommend this product
Got a Great product at great price
Good one
Musi
Confirmed purchase 7 February 2026
Published on 3 March 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Seagate 4TB portable HD
Using it to backup all my videos and photos, so far it hasn't missed a beat, it's replacing my other older smaller HDs and consolidating them onto one.
Ron
Confirmed purchase 26 November 2025
Published on 1 January 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
loving it
it has allowed me to free up so much space on my PC
Maibritt
Confirmed purchase 18 October 2025
Published on 12 November 2025
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
not as large
I was very surprised when I picked up my new hard drive. It was half the size and weight of the previous ones I've purchased. Much easier to store .
ROBYN
Confirmed purchase 30 September 2025
Published on 24 October 2025
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Seagate 4TB Expansion Portable Hard Drive
Great reliable product. Offers peace of mind for secure long term storage of photos and important documents.
Helen Allison
Confirmed purchase 2 September 2025
Published on 24 September 2025
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Back up storage - foolproof
Fantastic to back up all of my photos and music collection
Adriam
Confirmed purchase 14 July 2025
Published on 6 August 2025
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Awesome Features
This expansion drive is everything that it is made out to be. While having the capacity to store all our files it is fast and easy to use. Would definitely purchase another.
HB
Confirmed purchase 13 June 2025
Published on 10 July 2025
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Fantastic Hard Drive
This hard drive is fantastic, plenty of space to hold many photos and videos. Works extremely well and quick. Very handy to store due to its size. Great value for money and would highly recommend.
Maxine
Confirmed purchase 10 October 2024
Published on 8 November 2024
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Great unit easy to use
Compact and easy to use
Rob
Confirmed purchase 19 September 2024
Published on 16 October 2024
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Anonymous
Confirmed purchase 19 August 2023
Published on 9 September 2023
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
You've viewed 10 of 20 reviews
ABOUT THE GOOD GUYS REVIEWS
The Good Guys product reviews are collected from verified purchasers who may have received an incentive in return for providing an authentic review.
Q: What is the storage capacity of the Seagate 4TB Expansion Portable Hard Drive?
A: The storage capacity of the Seagate 4TB Expansion Portable Hard Drive is 4TB.
Q: Which operating systems are compatible with the Seagate 4TB Expansion Portable Hard Drive?
A: The Seagate 4TB Expansion Portable Hard Drive works with Windows, macOS, and Chrome OS systems.
Q: How fast are the data transfer speeds on the Seagate 4TB Expansion Portable Hard Drive?
A: The Seagate 4TB Expansion Portable Hard Drive offers transfer speeds up to 5GB/s via USB 3.0.
Q: What are the dimensions of the Seagate 4TB Expansion Portable Hard Drive?
A: Height 115.3mm, Width 80mm, Depth 20.9mm.
Q: What is included in the box with the Seagate 4TB Expansion Portable Hard Drive?
A: The box includes the Seagate Expansion portable hard drive, an 18 inch (46 cm) USB 3.0 cable, and a Quick Start Guide.