Seagate
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Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
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Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
More memory. More fun.
Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)
Item #: 234410608

Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400)

85% of respondents would recommend this to a friend

Item #: 234410608

LKR 97196

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from UK

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Order now and get it around Monday, September 28
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What Stands Out

High Capacity
With 4TB of storage, this external hard drive provides ample space for all your files, making it ideal for users needing extensive data storage without compromising on portability.
Universal Compatibility
Compatible with both Mac and PC systems, the Seagate Expansion ensures seamless connectivity and ease of use for all types of users, enhancing versatility in various computing environments.
Included Rescue Services
Each purchase includes a 2-year Rescue Services plan, offering data recovery options that provide peace of mind, ensuring users can recover critical files even in unexpected situations.

Product Details

Shop Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400) online at a best price in Sri Lanka. B08ZJFH7Y1
Digital Storage Capacity4000 GB
Hard Disk InterfaceUSB 2.0/3.0
Network Connectivity TechnologyUSB
Product FeaturesPortable
Hard Disk Form Factor3.5 Inches (8.9 cm)
Compatible DevicesCamera, Desktop, Drone, Gaming Console, Laptop
Specific Uses For ProductBusiness, Multimedia, Personal
Read Speed120 Megabytes Per Second
Media Speed120 Megabytes Per Second
Cache Memory Installed Size4
Data Transfer Rate600 Megabytes Per Second
Form Factor2.5-inch (6.4 cm)
Hardware ConnectivityUSB 3.0
Compatible Video Game Console ModelsMicrosoft Xbox SERIES S
Hardware PlatformLinux
Hard-Drive Size4 TB
Item Weight181 g
Item Dimensions L x W x Thickness20.3L x 3.8W x 29.7Th centimetres
Number of Items1
Unit Count1.0 count
Customer Package TypeFFP
Brand NameSeagate
Model NumberSTKM4000400
Hard Disk DescriptionMechanical Hard Disk
Box ContentsExpansion Portable 4TB, USB cable, The actual capacity may vary.
Model NameSTKM4000400
ManufacturerSEAGATE
Global Trade Identification Number00763649160480, 03660619040254, 10763649160487
UPC763649160480
Item Length122.3 Millimetres
Item Width81.1 Millimetres
Manufacturer Part NumberSTKM4000400
Installation TypeExternal Hard Drive
ColorBlack Expansion
Enclosure MaterialInformation Not Available
Connectivity technologyUSB
BrandSeagate
Special featurePortable
ColourBlack Expansion

Who Should Buy?

Suitable For
  • Frequent Travelers

    Lightweight and compact design makes it easy to carry for on-the-go data storage needs.

  • Media Professionals

    4TB capacity is ideal for storing high-resolution video and photography files for editing and backup.

  • Casual Users

    Plug-and-play functionality provides a simple solution for non-technical users needing extra storage.

Not Suitable For
  • Gaming Enthusiasts

    Performance may not meet the demands of high-speed gaming when compared to internal SSD options.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: Is the portable drive compatible with both Windows and Mac?

    Answer: Yes, it is compatible with both Windows and Mac computers.
  • Question: Do I need a wall adapter to use this portable drive?

    Answer: No, the drive is powered through the USB connection, so no wall adapter is required.
  • Question: What happens if I lose data on the drive?

    Answer: The drive comes with a data rescue service to help recover lost data due to unforeseen circumstances.
  • Question: Can the 4tb 2.5" HDD be powered only by hooking it into the USB port or it needs to be powered separately?

    Answer: Only the USB port is necessary.

Seagate External Hard Drives STKM4000400 Editorial Review

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Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, For Mac And PC, 2 Year Rescue Services (STKM4000400) offers a dependable solution for users seeking large storage options. Customers appreciate its user-friendly plug-and-play setup and impressive data transfer rates of up to 600 Megabytes per second, making file moving efficient and hassle-free. The durable design is compact, weighing only 181 grams, which makes it ideal for travel. Many users have noted that it comfortably fits in their bags and even claim it supports a variety of devices, from laptops to gaming consoles. The added benefit of two years of data recovery service ensures peace of mind for valuable data storage.

Customer Reviews & Ratings

32937 customers ratings
  • 5 Star
    80%
  • 4 Star
    14%
  • 3 Star
    3%
  • 2 Star
    1%
  • 1 Star
    2%

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Pros

  • Lightweight and portable design for easy travel
  • High-speed data transfer up to 600 MB/s
  • Compatible with various devices including gaming consoles
  • User-friendly plug-and-play setup
  • Comes with two years of data recovery service

Cons

  • Might feel slightly thicker than smaller capacity models

Platform Trust & Buyer Confidence

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4.2/5 9477 reviews
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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Anke
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
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Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

LKR 97196

Order now and get it around Monday, September 28

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

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Fastest cross-border delivery

Features & Benefits

  • Expand your storage effortlessly with drag-and-drop functionality.
  • Compatible with both Windows and Mac computers via fast USB 3.0.
  • Portable design that fits in your bag while offering a large capacity.
  • Automatic detection allows for quick setup—no complicated installation needed.
  • Includes a data rescue service to protect against unexpected data loss.
  • High customer satisfaction with an average rating of 4.6 out of 5 stars.

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