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Seagate

Seagate Expansion Desktop 20TB, Externe Harde Schijf, 3.5", PC & Laptop, USB 3.0, Data Rescue Service (STKP20000400)

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Aug 26
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Style: Expansion Desktop HDD


Capacity: 20TB


Color: DESKTOP


Features

  • Easy-to-use desktop hard drivesimply plug in the power adapter and USB cable
  • USB 3.0 allows fast file transfers for efficient data management
  • Drag-and-drop file saving right out of the box
  • Automatic recognition of Windows and Mac computers for simple setup (Reformatting required for use with Time Machine)
  • Enjoy peace of mind with the included limited warranty and Rescue Data Recovery Services

Description

Ideal for the home, office, or dorm, Seagate Expansion desktop drive offers enormous desktop storage for photos, movies, music, and more. Backing up and transferring content is incredibly easy—just drag and drop! To get set up, connect the USB hard drive to Windows or Mac—no software required. For Apple Time Machine, simply reformat. Included is an 18-inch USB 3.0 cable and 18W power adapter.

Digital Storage Capacity: 20 TB


Hard Disk Interface: USB 3.0


Connectivity Technology: USB


Brand: Seagate


Special Feature: Data Recovery Service


Hard Disk Form Factor: 3.5 Inches


Hard Disk Description: Mechanical Hard Disk


Compatible Devices: Desktop


Installation Type: External Hard Drive


Color: DESKTOP


Hard Drive: ‎20 TB Mechanical Hard Disk


Brand: ‎Seagate


Series: ‎Expansion Desktop


Item model number: ‎STKP20000400


Hardware Platform: ‎Linux, Mac, PC


Item Weight: ‎2.59 pounds


Product Dimensions: ‎6.93 x 1.44 x 4.75 inches


Item Dimensions LxWxH: ‎6.93 x 1.44 x 4.75 inches


Color: ‎DESKTOP


Flash Memory Size: ‎20 TB


Hard Drive Interface: ‎USB 3.0


Hard Drive Rotational Speed: ‎7200 RPM


Manufacturer: ‎Seagate


Language: ‎English, English, English


Date First Available: ‎January 31, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Reliable, Portable, and Easy to Use
Style: Expansion Desktop HDD Capacity: 28TB Color: DESKTOP
Fast portable hard drive, perfect for backups or extra storage. Works perfectly with a PC, no complex setup required. Lightweight, compact and great value for money.
Reviewed in the United States on August 8, 2025 by daniel maralal
    • Reliable, Portable, and Easy to Use
Style: Portable HDD Capacity: 2TB Color: PORTABLE
I absolutely love this external hard drive. The fact that it works without needing external power is a huge plus — just plug it in and go. It’s lightweight and compact, making it easy to carry anywhere, whether I’m traveling or just moving between home and office. The build quality feels solid and durable, and it performs exactly as expected. Fast file transfers, plenty of space, and no setup headaches. Perfect for backups, storing media, or transporting large files. Highly recommended if you need reliable storage on the go. ... show more
Reviewed in the United States on July 28, 2025 by José Rodríguez
    • Gets the job done.
Style: Portable HDD Capacity: 2TB Color: PORTABLE
I've had this almost two years I believe and so far it gets the job done. I love how small it is and it's very quiet. It doesn't overheat and it's easy to connect and disconnect. I can organize as many folders as I want on it. I got this to store pictures and my manuscripts because elgoog wants my money. Great product, no complaints here. ... show more
Reviewed in the United States on August 2, 2025 by Devin
    • Great drive
Style: Portable HDD Capacity: 5TB Color: PORTABLE
NO PROBLEMS AT ALL. ALL I COULD WANT IN A 5 TB HARD DRIVE. PLUG AND PLAY. KIND OF SLOW BUT EXPECTED THAT OUT OF A PORTABLE HARD DRIVE.
Reviewed in the United States on August 2, 2025 by Kindle Customer
    • Massive Capacity at a Great Price, but Not for Speed Demons
Style: Expansion Desktop HDD Capacity: 28TB Color: DESKTOP
The Seagate Expansion 28TB External Drive is a fantastic choice if you’re looking for sheer storage capacity at a reasonable price. For long-term media archiving, backup, or general cold storage, it delivers excellent value. Setup was quick and easy—plug-and-play as expected. However, as with most high-capacity USB 3.0 drives, don’t expect blazing-fast performance. In CrystalDiskMark, I measured: Read: ~197 MB/s Write: ~190 MB/s This is fine for large file transfers in the background but definitely not suited for real-time editing or active use cases involving lots of I/O. Another consideration is thermal performance. Even sitting on a laptop cooling pad with good airflow, the drive still runs warmer than I’d like, hovering in the high 40s°C. This is something to monitor if you plan on heavy or sustained usage. Despite these speed and heat caveats, the value per terabyte and reliability from a known brand like Seagate makes this a smart buy for bulk storage. Just know what you're getting, it’s a capacity king, not a speed champion. ... show more
Reviewed in the United States on June 24, 2025 by Timothy B. Elliott
    • Reliable and Spacious Storage Solution for Backups
Style: Expansion Desktop HDD Capacity: 8TB Color: DESKTOP
I recently purchased the Seagate Expansion 8TB External Hard Drive (STKP8000400) to back up my growing collection of photos, videos, and documents, and I’m very satisfied with its performance. Setting up the drive was truly plug-and-play—just connect it through USB 3.0 and it’s instantly recognized by my computer without any extra steps. The transfer speeds are excellent, so moving large files takes far less time than with my older drives. The 8TB capacity means I have more than enough space for my current needs and plenty of room to grow. The compact design fits neatly on my desk, and it runs quietly even during long backup sessions. Having Rescue Data Recovery Services included adds extra peace of mind in case something ever goes wrong. Overall, this Seagate external hard drive is a fantastic choice for anyone needing a large, reliable backup drive that’s simple to use and trustworthy. ... show more
Reviewed in the United States on June 25, 2025 by Patrick Michael O'Leary
    • You get worth your money.
Style: Ultra Compact SSD Capacity: 2TB Color: ULTRA COMPACT
Works, It's fast, only downside is still to much USB-A around, but it's future proof. Size is small and easy to carry arround. I hope this will be a stick I have around for long time.
Reviewed in the United States on August 9, 2025 by Kindle Customer
    • Plenty of Room for Photo and Video Backups
Style: Portable HDD Capacity: 4TB Color: PORTABLE
I still remember the day I bought my first computer with a 40 MB hard drive. It was the early 1990s and truly thought I’d never outgrow that much “capacity.” Thirty-five years later and we’re talking terabytes, and just like money, it’s never too much. I bought this Seagate 4TB external drive to backup all the photos and videos I shoot with my iPhone, and even though I will outgrow it in a year or two, I’ll just get another one when this one is full (I want to save the thousands of pics and vids I have). I was fortunate to pick it up as a Prime offer, so I got a sweet deal. Installation was super easy and got it connected in a matter of minutes. It’s super fast, too, so I can use it just as I do the hard drive. Thank you for reading! 😊👍🏻 ... show more
Reviewed in the United States on July 14, 2025 by — Odie

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