Buy wisely
Buy wiselyBuy wisely
For RetailersFor developers
  1. Home
Buy wisely

BuyWisely is your one stop price comparison platform, delivering the best deals from over 20,000 online shops. We empower shoppers to make smart, cost-effective choices by offering transparent pricing, price history, and the latest deals across a broad range of products. With BuyWisely, your money goes further.

Popular Shops
JB Hi-Fi
The Good Guys
Harvey Norman
Appliances Online
Bing Lee
Kogan
Amazon
Officeworks
Contact Us
[email protected]
Affiliate Disclosure
Legal Information
Privacy Policy
Logos provided by Logo.dev
© 2026 BuyWisely•Price data powered by pricesAPI.io•Retailers: SellWisely.io
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive
Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive

Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive

$648.00

(2,837 reviews)

What sets the Seagate Expansion Desktop Drive apart is its impressive 20TB storage capacity, designed to effortlessly handle your ever-growing collection of files. This 3.5" external hard drive is a reliable solution for those needing to expand their digital storage space, consolidate files in one accessible location, or liberate valuable space on their computer's internal drive. With the Seagate Expansion drives, you can enjoy instant plug-in storage expansion, adding substantial space to your system within seconds. The device offers a seamless drag-and-drop file saving feature, making it incredibly user-friendly right out of the box. Experience rapid data transfer rates with the integrated USB 3.0 connectivity, ensuring your files are transferred quickly and efficiently. This external hard drive is universally compatible, working smoothly with most Windows, macOS, and Chrome OS systems. In the face of unforeseen circumstances such as water damage or natural disasters, the Seagate Expansion Desktop Drive comes equipped with Rescue Data Recovery Services. This feature provides a robust defense against data loss, offering you peace of mind and protection against potential retrieval costs. Choosing the Seagate Expansion Desktop Drive means opting for easy installation, a massive 20TB capacity, and smart built-in power management. This ensures energy-efficient operation, making it not just a powerful, but also an environmentally conscious choice for your storage needs.

What sets the Seagate Expansion Desktop Drive apart is its impressive 20TB storage capacity, designed to effortlessly handle your ever-growing collection of files. This 3.5" external hard drive is a reliable solution for those needing to expand their digital storage space, consolidate files in one accessible location, or liberate valuable space on their computer's internal drive. With the Seagate Expansion drives, you can enjoy instant plug-in storage expansion, adding substantial space to your system within seconds. The device offers a seamless drag-and-drop file saving feature, making it incredibly user-friendly right out of the box. Experience rapid data transfer rates with the integrated USB 3.0 connectivity, ensuring your files are transferred quickly and efficiently. This external hard drive is universally compatible, working smoothly with most Windows, macOS, and Chrome OS systems. In the face of unforeseen circumstances such as water damage or natural disasters, the Seagate Expansion Desktop Drive comes equipped with Rescue Data Recovery Services. This feature provides a robust defense against data loss, offering you peace of mind and protection against potential retrieval costs. Choosing the Seagate Expansion Desktop Drive means opting for easy installation, a massive 20TB capacity, and smart built-in power management. This ensures energy-efficient operation, making it not just a powerful, but also an environmentally conscious choice for your storage needs.

Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive

(2,837 reviews)

What sets the Seagate Expansion Desktop Drive apart is its impressive 20TB storage capacity, designed to effortlessly handle your ever-growing collection of files. This 3.5" external hard drive is a reliable solution for those needing to expand their digital storage space, consolidate files in one accessible location, or liberate valuable space on their computer's internal drive. With the Seagate Expansion drives, you can enjoy instant plug-in storage expansion, adding substantial space to your system within seconds. The device offers a seamless drag-and-drop file saving feature, making it incredibly user-friendly right out of the box. Experience rapid data transfer rates with the integrated USB 3.0 connectivity, ensuring your files are transferred quickly and efficiently. This external hard drive is universally compatible, working smoothly with most Windows, macOS, and Chrome OS systems. In the face of unforeseen circumstances such as water damage or natural disasters, the Seagate Expansion Desktop Drive comes equipped with Rescue Data Recovery Services. This feature provides a robust defense against data loss, offering you peace of mind and protection against potential retrieval costs. Choosing the Seagate Expansion Desktop Drive means opting for easy installation, a massive 20TB capacity, and smart built-in power management. This ensures energy-efficient operation, making it not just a powerful, but also an environmentally conscious choice for your storage needs.

What sets the Seagate Expansion Desktop Drive apart is its impressive 20TB storage capacity, designed to effortlessly handle your ever-growing collection of files. This 3.5" external hard drive is a reliable solution for those needing to expand their digital storage space, consolidate files in one accessible location, or liberate valuable space on their computer's internal drive. With the Seagate Expansion drives, you can enjoy instant plug-in storage expansion, adding substantial space to your system within seconds. The device offers a seamless drag-and-drop file saving feature, making it incredibly user-friendly right out of the box. Experience rapid data transfer rates with the integrated USB 3.0 connectivity, ensuring your files are transferred quickly and efficiently. This external hard drive is universally compatible, working smoothly with most Windows, macOS, and Chrome OS systems. In the face of unforeseen circumstances such as water damage or natural disasters, the Seagate Expansion Desktop Drive comes equipped with Rescue Data Recovery Services. This feature provides a robust defense against data loss, offering you peace of mind and protection against potential retrieval costs. Choosing the Seagate Expansion Desktop Drive means opting for easy installation, a massive 20TB capacity, and smart built-in power management. This ensures energy-efficient operation, making it not just a powerful, but also an environmentally conscious choice for your storage needs.

$648.00 - $899.00

in 5 offers

The lowest price for Seagate 20TB 3.5" Expansion Desktop USB 3.0 External Hard Drive right now is $648.00 at Adorit, compared across 5 retailers.

The all-time low was $251.52 on 2 June 2026 — today's price is 158% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 29 June 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 29/06/2026 18:42:08

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Adorit

$648.00

20TB External HDD Seagate Expansion Desktop Hard Drive

Free delivery by Thu

JW Computers

$829.00

Seagate Expansion 20TB Desktop Hard Drive

7-day returns

Playthek.com

$876.70

Seagate expansion desktop ext drive20tb

Free delivery

Harvey Norman

$899.00

Seagate 20TB Expansion Desktop Hard Drive

Domayne

$899.00

Seagate 20TB Expansion Desktop Hard Drive

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Product Weight
Weight2.96 lb

Price comparison

Updated about 10 hours ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
Adorit

$648.00

Out of stock

20TB External HDD Seagate Expansion Desktop Hard Drive

Free delivery by Thu

JW Computers

$829.00

Out of stock

Seagate Expansion 20TB Desktop Hard Drive

7-day returns

Playthek.com

$876.70

Seagate expansion desktop ext drive20tb

Free delivery

Harvey Norman

$899.00

Seagate 20TB Expansion Desktop Hard Drive

Domayne

$899.00

Seagate 20TB Expansion Desktop Hard Drive

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Product Weight
Weight2.96 lb

You may also like

Seagate 8TB Expansion Desktop USB 3.0 External Hard Drive STKP8000400
Seagate 8TB Expansion Desktop USB 3.0 External Hard Drive STKP8000400$109.95 - $623.76
3,327
Compare 18 offers
Seagate STKP6000400 6TB Expansion Desktop USB 3.0 External Hard Drive
Seagate STKP6000400 6TB Expansion Desktop USB 3.0 External Hard Drive$264.00 - $527.61
3,050
Compare 13 offers
Seagate Expansion Desktop 3.5in 16TB External USB 3.0 Hard Drive [STKP16000400]
Seagate Expansion Desktop 3.5in 16TB External USB 3.0 Hard Drive [STKP16000400]$499.00 - $1,584.13
3,050
Compare 12 offers
Seagate Expansion 16TB Desktop External Hard Drive
Seagate Expansion 16TB Desktop External Hard Drive$49.95 - $1,907.82
2,536
Compare 10 offers
Seagate Expansion 8TB Desktop External Hard Drive
Seagate Expansion 8TB Desktop External Hard Drive$299.00 - $419.00
2,119
Compare 3 offers
Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 for PC Laptop (STEB16000402)
Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 for PC Laptop (STEB16000402)$799.00 - $846.85
4
Compare 2 offers